./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/sina4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/array-fpi/sina4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 933eff495d93b07d12af9180ab5b75cc35fb173187f8af9883307194e1e7fea3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 10:57:35,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 10:57:35,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 10:57:35,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 10:57:35,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 10:57:35,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 10:57:35,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 10:57:35,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 10:57:35,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 10:57:35,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 10:57:35,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 10:57:35,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 10:57:35,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 10:57:35,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 10:57:35,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 10:57:35,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 10:57:35,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 10:57:35,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 10:57:35,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 10:57:35,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 10:57:35,574 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 10:57:35,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 10:57:35,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 10:57:35,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 10:57:35,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 10:57:35,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 10:57:35,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 10:57:35,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 10:57:35,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 10:57:35,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 10:57:35,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 10:57:35,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 10:57:35,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 10:57:35,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 10:57:35,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 10:57:35,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 10:57:35,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 10:57:35,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 10:57:35,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 10:57:35,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 10:57:35,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 10:57:35,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 10:57:35,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 10:57:35,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 10:57:35,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 10:57:35,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 10:57:35,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 10:57:35,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 10:57:35,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 10:57:35,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 10:57:35,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 10:57:35,619 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 10:57:35,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 10:57:35,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 10:57:35,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 10:57:35,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 10:57:35,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 10:57:35,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 10:57:35,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 10:57:35,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 10:57:35,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 10:57:35,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 10:57:35,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 10:57:35,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 10:57:35,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 10:57:35,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 10:57:35,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 10:57:35,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 10:57:35,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 10:57:35,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 10:57:35,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 10:57:35,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 10:57:35,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 10:57:35,625 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 10:57:35,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 10:57:35,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 10:57:35,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933eff495d93b07d12af9180ab5b75cc35fb173187f8af9883307194e1e7fea3 [2022-07-22 10:57:35,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 10:57:35,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 10:57:35,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 10:57:35,857 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 10:57:35,857 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 10:57:35,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/sina4.c [2022-07-22 10:57:35,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8c2ee096/72d4137ae39346c5b95ee46bcdd1acc8/FLAG92d92dd86 [2022-07-22 10:57:36,337 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 10:57:36,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina4.c [2022-07-22 10:57:36,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8c2ee096/72d4137ae39346c5b95ee46bcdd1acc8/FLAG92d92dd86 [2022-07-22 10:57:36,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8c2ee096/72d4137ae39346c5b95ee46bcdd1acc8 [2022-07-22 10:57:36,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 10:57:36,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 10:57:36,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 10:57:36,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 10:57:36,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 10:57:36,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ef31aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36, skipping insertion in model container [2022-07-22 10:57:36,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 10:57:36,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 10:57:36,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina4.c[588,601] [2022-07-22 10:57:36,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 10:57:36,614 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 10:57:36,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina4.c[588,601] [2022-07-22 10:57:36,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 10:57:36,658 INFO L208 MainTranslator]: Completed translation [2022-07-22 10:57:36,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36 WrapperNode [2022-07-22 10:57:36,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 10:57:36,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 10:57:36,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 10:57:36,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 10:57:36,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,702 INFO L137 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2022-07-22 10:57:36,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 10:57:36,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 10:57:36,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 10:57:36,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 10:57:36,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 10:57:36,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 10:57:36,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 10:57:36,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 10:57:36,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (1/1) ... [2022-07-22 10:57:36,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 10:57:36,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 10:57:36,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 10:57:36,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 10:57:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 10:57:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 10:57:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 10:57:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 10:57:36,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 10:57:36,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 10:57:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 10:57:36,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 10:57:36,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 10:57:36,910 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 10:57:36,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 10:57:37,055 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 10:57:37,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 10:57:37,060 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-22 10:57:37,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:57:37 BoogieIcfgContainer [2022-07-22 10:57:37,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 10:57:37,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 10:57:37,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 10:57:37,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 10:57:37,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:57:36" (1/3) ... [2022-07-22 10:57:37,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac948e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:57:37, skipping insertion in model container [2022-07-22 10:57:37,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:57:36" (2/3) ... [2022-07-22 10:57:37,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac948e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:57:37, skipping insertion in model container [2022-07-22 10:57:37,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:57:37" (3/3) ... [2022-07-22 10:57:37,071 INFO L111 eAbstractionObserver]: Analyzing ICFG sina4.c [2022-07-22 10:57:37,084 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 10:57:37,084 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 10:57:37,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 10:57:37,132 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7e325d17, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@105955ab [2022-07-22 10:57:37,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 10:57:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:57:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 10:57:37,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:57:37,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:57:37,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:57:37,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:57:37,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2022-07-22 10:57:37,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:57:37,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678819513] [2022-07-22 10:57:37,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:57:37,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:57:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:57:37,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:57:37,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:57:37,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678819513] [2022-07-22 10:57:37,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678819513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 10:57:37,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 10:57:37,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 10:57:37,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508684964] [2022-07-22 10:57:37,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 10:57:37,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 10:57:37,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 10:57:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 10:57:37,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 10:57:37,366 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 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 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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) [2022-07-22 10:57:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 10:57:37,383 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-07-22 10:57:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 10:57:37,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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) Word has length 16 [2022-07-22 10:57:37,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 10:57:37,394 INFO L225 Difference]: With dead ends: 50 [2022-07-22 10:57:37,394 INFO L226 Difference]: Without dead ends: 23 [2022-07-22 10:57:37,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 10:57:37,408 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 10:57:37,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 10:57:37,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-22 10:57:37,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-22 10:57:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 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) [2022-07-22 10:57:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-07-22 10:57:37,440 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2022-07-22 10:57:37,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 10:57:37,441 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-07-22 10:57:37,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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) [2022-07-22 10:57:37,443 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-07-22 10:57:37,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 10:57:37,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:57:37,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:57:37,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 10:57:37,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:57:37,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:57:37,448 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2022-07-22 10:57:37,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:57:37,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313023622] [2022-07-22 10:57:37,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:57:37,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:57:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:57:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:57:37,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:57:37,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313023622] [2022-07-22 10:57:37,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313023622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 10:57:37,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 10:57:37,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 10:57:37,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120799338] [2022-07-22 10:57:37,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 10:57:37,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 10:57:37,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 10:57:37,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 10:57:37,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 10:57:37,587 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2022-07-22 10:57:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 10:57:37,680 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2022-07-22 10:57:37,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 10:57:37,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) Word has length 16 [2022-07-22 10:57:37,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 10:57:37,682 INFO L225 Difference]: With dead ends: 53 [2022-07-22 10:57:37,682 INFO L226 Difference]: Without dead ends: 37 [2022-07-22 10:57:37,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 10:57:37,687 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 10:57:37,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 10:57:37,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-22 10:57:37,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2022-07-22 10:57:37,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:57:37,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-07-22 10:57:37,704 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-07-22 10:57:37,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 10:57:37,706 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-07-22 10:57:37,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2022-07-22 10:57:37,706 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-07-22 10:57:37,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-22 10:57:37,707 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:57:37,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:57:37,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 10:57:37,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:57:37,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:57:37,708 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2022-07-22 10:57:37,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:57:37,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819441776] [2022-07-22 10:57:37,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:57:37,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:57:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:57:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:57:38,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:57:38,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819441776] [2022-07-22 10:57:38,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819441776] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 10:57:38,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517516170] [2022-07-22 10:57:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:57:38,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:57:38,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 10:57:38,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 10:57:38,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 10:57:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:57:38,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 46 conjunts are in the unsatisfiable core [2022-07-22 10:57:38,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 10:57:38,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-22 10:57:38,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 10:57:38,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-07-22 10:57:38,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-07-22 10:57:39,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-07-22 10:57:39,222 INFO L356 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size [2022-07-22 10:57:39,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 46 [2022-07-22 10:57:45,011 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 10:57:45,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 70 [2022-07-22 10:57:45,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:57:45,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 10:58:10,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:58:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:58:10,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517516170] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 10:58:10,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 10:58:10,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2022-07-22 10:58:10,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539598269] [2022-07-22 10:58:10,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 10:58:10,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-07-22 10:58:10,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 10:58:10,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-07-22 10:58:10,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=967, Unknown=10, NotChecked=0, Total=1122 [2022-07-22 10:58:10,421 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:58:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 10:58:10,784 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2022-07-22 10:58:10,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 10:58:10,785 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 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 24 [2022-07-22 10:58:10,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 10:58:10,786 INFO L225 Difference]: With dead ends: 53 [2022-07-22 10:58:10,786 INFO L226 Difference]: Without dead ends: 51 [2022-07-22 10:58:10,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 28 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 31.4s TimeCoverageRelationStatistics Valid=169, Invalid=1081, Unknown=10, NotChecked=0, Total=1260 [2022-07-22 10:58:10,788 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 10:58:10,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 132 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 276 Invalid, 0 Unknown, 44 Unchecked, 0.2s Time] [2022-07-22 10:58:10,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-22 10:58:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2022-07-22 10:58:10,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:58:10,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2022-07-22 10:58:10,796 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 24 [2022-07-22 10:58:10,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 10:58:10,796 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2022-07-22 10:58:10,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:58:10,797 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-07-22 10:58:10,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-22 10:58:10,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:58:10,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:58:10,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 10:58:11,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:58:11,018 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:58:11,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:58:11,019 INFO L85 PathProgramCache]: Analyzing trace with hash 831040416, now seen corresponding path program 2 times [2022-07-22 10:58:11,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:58:11,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154758025] [2022-07-22 10:58:11,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:58:11,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:58:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:58:11,126 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 10:58:11,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:58:11,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154758025] [2022-07-22 10:58:11,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154758025] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 10:58:11,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741310352] [2022-07-22 10:58:11,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 10:58:11,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:58:11,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 10:58:11,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 10:58:11,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 10:58:11,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 10:58:11,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 10:58:11,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 10:58:11,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 10:58:11,251 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 10:58:11,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 10:58:11,287 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 10:58:11,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741310352] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 10:58:11,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 10:58:11,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-07-22 10:58:11,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191213848] [2022-07-22 10:58:11,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 10:58:11,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 10:58:11,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 10:58:11,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 10:58:11,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-22 10:58:11,292 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 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) [2022-07-22 10:58:11,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 10:58:11,445 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-07-22 10:58:11,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 10:58:11,446 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 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) Word has length 26 [2022-07-22 10:58:11,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 10:58:11,447 INFO L225 Difference]: With dead ends: 101 [2022-07-22 10:58:11,447 INFO L226 Difference]: Without dead ends: 66 [2022-07-22 10:58:11,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-07-22 10:58:11,448 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 84 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 10:58:11,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 46 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 10:58:11,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-07-22 10:58:11,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2022-07-22 10:58:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:58:11,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-07-22 10:58:11,455 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 26 [2022-07-22 10:58:11,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 10:58:11,456 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-07-22 10:58:11,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 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) [2022-07-22 10:58:11,456 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-07-22 10:58:11,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-22 10:58:11,457 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:58:11,457 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:58:11,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-22 10:58:11,668 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,SelfDestructingSolverStorable3 [2022-07-22 10:58:11,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:58:11,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:58:11,669 INFO L85 PathProgramCache]: Analyzing trace with hash -587916192, now seen corresponding path program 3 times [2022-07-22 10:58:11,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:58:11,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153699819] [2022-07-22 10:58:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:58:11,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:58:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:58:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 10:58:11,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:58:11,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153699819] [2022-07-22 10:58:11,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153699819] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 10:58:11,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987677031] [2022-07-22 10:58:11,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 10:58:11,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:58:11,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 10:58:11,762 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 10:58:11,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 10:58:11,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-22 10:58:11,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 10:58:11,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 10:58:11,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 10:58:11,873 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 10:58:11,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 10:58:11,906 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 10:58:11,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987677031] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 10:58:11,907 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 10:58:11,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-07-22 10:58:11,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621272576] [2022-07-22 10:58:11,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 10:58:11,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 10:58:11,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 10:58:11,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 10:58:11,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-22 10:58:11,909 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:58:12,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 10:58:12,051 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-07-22 10:58:12,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 10:58:12,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-22 10:58:12,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 10:58:12,052 INFO L225 Difference]: With dead ends: 63 [2022-07-22 10:58:12,052 INFO L226 Difference]: Without dead ends: 50 [2022-07-22 10:58:12,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-07-22 10:58:12,053 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 88 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 10:58:12,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 47 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 10:58:12,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-22 10:58:12,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2022-07-22 10:58:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:58:12,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-07-22 10:58:12,058 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2022-07-22 10:58:12,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 10:58:12,058 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-07-22 10:58:12,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:58:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-07-22 10:58:12,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-22 10:58:12,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:58:12,059 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:58:12,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-22 10:58:12,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:58:12,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:58:12,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:58:12,261 INFO L85 PathProgramCache]: Analyzing trace with hash -826292134, now seen corresponding path program 4 times [2022-07-22 10:58:12,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:58:12,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887509810] [2022-07-22 10:58:12,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:58:12,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:58:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:58:13,559 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:58:13,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:58:13,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887509810] [2022-07-22 10:58:13,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887509810] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 10:58:13,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910345059] [2022-07-22 10:58:13,559 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 10:58:13,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:58:13,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 10:58:13,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 10:58:13,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 10:58:13,646 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 10:58:13,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 10:58:13,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 62 conjunts are in the unsatisfiable core [2022-07-22 10:58:13,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 10:58:13,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 10:58:13,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:13,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-07-22 10:58:13,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:13,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:13,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-07-22 10:58:14,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:58:14,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2022-07-22 10:58:14,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2022-07-22 10:58:14,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:58:14,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 46 [2022-07-22 10:58:14,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,610 INFO L356 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-07-22 10:58:14,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 63 [2022-07-22 10:58:14,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:14,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:58:14,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:58:14,828 INFO L356 Elim1Store]: treesize reduction 38, result has 46.5 percent of original size [2022-07-22 10:58:14,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 52 [2022-07-22 10:58:15,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:58:15,200 INFO L356 Elim1Store]: treesize reduction 136, result has 27.3 percent of original size [2022-07-22 10:58:15,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 70 treesize of output 117 [2022-07-22 10:58:15,933 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 10:58:15,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 163 [2022-07-22 10:58:15,978 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:58:15,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 10:58:18,168 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (forall ((v_ArrVal_227 Int)) (= (+ c_~N~0 2) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_69| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_69|)))) is different from false [2022-07-22 10:58:43,245 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_72| Int)) (or (forall ((v_ArrVal_223 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_227 Int)) (or (= (+ c_~N~0 2) (select (store (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_72| 8)) v_ArrVal_223))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ (* |v_ULTIMATE.start_main_~i~0#1_69| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|)) (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_69|)))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_72|)))) is different from false [2022-07-22 10:58:53,934 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-07-22 10:58:53,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910345059] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 10:58:53,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 10:58:53,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 21, 22] total 64 [2022-07-22 10:58:53,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140400041] [2022-07-22 10:58:53,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 10:58:53,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-07-22 10:58:53,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 10:58:53,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-07-22 10:58:53,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=3473, Unknown=10, NotChecked=242, Total=4032 [2022-07-22 10:58:53,939 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 64 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:58:56,267 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= c_~N~0 2) (= (select .cse0 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_72| Int)) (or (forall ((v_ArrVal_223 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_227 Int)) (or (= (+ c_~N~0 2) (select (store (let ((.cse1 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_72| 8)) v_ArrVal_223))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ (* |v_ULTIMATE.start_main_~i~0#1_69| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|)) (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_69|)))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_72|)))) (or (< 2 c_~N~0) (let ((.cse3 (select .cse0 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (.cse2 (+ c_~N~0 1))) (and (<= .cse2 .cse3) (<= .cse3 .cse2)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~i~0#1| 0) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse4 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse6 (select .cse5 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|)))) (and (= (+ (* .cse4 2) (* (- 1) (select .cse5 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (* (- 1) .cse6)) 0) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (= (+ (* (- 1) .cse4) .cse6) 1))))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (< 1 c_~N~0) (<= 2 c_~N~0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-07-22 10:58:58,355 WARN L833 $PredicateComparison]: unable to prove that (and (<= c_~N~0 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_72| Int)) (or (forall ((v_ArrVal_223 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_227 Int)) (or (= (+ c_~N~0 2) (select (store (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_72| 8)) v_ArrVal_223))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ (* |v_ULTIMATE.start_main_~i~0#1_69| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|)) (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_69|)))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_72|)))) (= 3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (< 1 c_~N~0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (and (= (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) 2) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|)))) is different from false [2022-07-22 10:59:00,463 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse0 (+ c_~N~0 2))) (and (<= c_~N~0 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (forall ((v_ArrVal_227 Int)) (= (+ c_~N~0 2) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_69| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_69|)))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (<= .cse0 .cse1) (< 1 c_~N~0) (or (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (and (< (+ |ULTIMATE.start_main_~a~0#1.base| 1) |c_ULTIMATE.start_main_~b~0#1.base|) (= (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (* 8 |c_ULTIMATE.start_main_~i~0#1|)) 3))) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (and (= (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (* 8 |c_ULTIMATE.start_main_~i~0#1|)) 3) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int)) (and (< (+ |ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) 2)))))) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (and (= (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) 2) (< (+ |c_ULTIMATE.start_main_~b~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= .cse1 4) (<= .cse1 .cse0))) is different from false [2022-07-22 10:59:02,632 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse0 (+ c_~N~0 2))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (forall ((v_ArrVal_227 Int)) (= (+ c_~N~0 2) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_69| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_69|)))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (<= .cse0 .cse1) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= .cse1 .cse0))) is different from false [2022-07-22 10:59:02,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 10:59:02,657 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2022-07-22 10:59:02,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-07-22 10:59:02,658 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-22 10:59:02,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 10:59:02,660 INFO L225 Difference]: With dead ends: 90 [2022-07-22 10:59:02,660 INFO L226 Difference]: Without dead ends: 88 [2022-07-22 10:59:02,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1708 ImplicationChecksByTransitivity, 47.6s TimeCoverageRelationStatistics Valid=375, Invalid=4191, Unknown=14, NotChecked=822, Total=5402 [2022-07-22 10:59:02,663 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 387 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 10:59:02,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 184 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 270 Invalid, 0 Unknown, 387 Unchecked, 0.2s Time] [2022-07-22 10:59:02,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-22 10:59:02,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 66. [2022-07-22 10:59:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 65 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2022-07-22 10:59:02,674 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 32 [2022-07-22 10:59:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 10:59:02,675 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-07-22 10:59:02,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2022-07-22 10:59:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-22 10:59:02,676 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:59:02,676 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:59:02,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 10:59:02,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:59:02,901 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:59:02,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:59:02,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2147373800, now seen corresponding path program 5 times [2022-07-22 10:59:02,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:59:02,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004893755] [2022-07-22 10:59:02,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:59:02,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:59:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:59:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 10:59:02,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:59:02,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004893755] [2022-07-22 10:59:02,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004893755] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 10:59:02,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742750942] [2022-07-22 10:59:02,996 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 10:59:02,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:59:02,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 10:59:02,997 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 10:59:02,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 10:59:03,121 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-07-22 10:59:03,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 10:59:03,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 10:59:03,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 10:59:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 10:59:03,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 10:59:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 10:59:03,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742750942] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 10:59:03,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 10:59:03,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-07-22 10:59:03,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040627450] [2022-07-22 10:59:03,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 10:59:03,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 10:59:03,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 10:59:03,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 10:59:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-07-22 10:59:03,233 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 10:59:03,421 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2022-07-22 10:59:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 10:59:03,421 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-22 10:59:03,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 10:59:03,422 INFO L225 Difference]: With dead ends: 145 [2022-07-22 10:59:03,422 INFO L226 Difference]: Without dead ends: 110 [2022-07-22 10:59:03,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-07-22 10:59:03,424 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 100 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 10:59:03,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 73 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 10:59:03,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-07-22 10:59:03,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 77. [2022-07-22 10:59:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.131578947368421) internal successors, (86), 76 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:03,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2022-07-22 10:59:03,436 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 34 [2022-07-22 10:59:03,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 10:59:03,437 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2022-07-22 10:59:03,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2022-07-22 10:59:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-22 10:59:03,438 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:59:03,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:59:03,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 10:59:03,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:59:03,661 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:59:03,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:59:03,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1737020496, now seen corresponding path program 1 times [2022-07-22 10:59:03,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:59:03,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308397063] [2022-07-22 10:59:03,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:59:03,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:59:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:59:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:59:05,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:59:05,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308397063] [2022-07-22 10:59:05,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308397063] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 10:59:05,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283500040] [2022-07-22 10:59:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:59:05,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:59:05,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 10:59:05,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 10:59:05,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 10:59:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:59:05,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 80 conjunts are in the unsatisfiable core [2022-07-22 10:59:05,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 10:59:05,179 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 10:59:05,190 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-22 10:59:05,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 50 [2022-07-22 10:59:05,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-07-22 10:59:05,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:05,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-07-22 10:59:05,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:05,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:05,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:05,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2022-07-22 10:59:05,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:05,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:05,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:05,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2022-07-22 10:59:05,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:05,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:05,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2022-07-22 10:59:05,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:05,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:05,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:05,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 46 [2022-07-22 10:59:06,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:06,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:06,103 INFO L356 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2022-07-22 10:59:06,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 65 [2022-07-22 10:59:06,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:06,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:06,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:06,273 INFO L356 Elim1Store]: treesize reduction 51, result has 27.1 percent of original size [2022-07-22 10:59:06,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 53 treesize of output 57 [2022-07-22 10:59:06,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:06,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:06,771 INFO L356 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2022-07-22 10:59:06,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 38 [2022-07-22 10:59:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:59:06,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 10:59:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:59:10,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283500040] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 10:59:10,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 10:59:10,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 24, 23] total 66 [2022-07-22 10:59:10,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074116803] [2022-07-22 10:59:10,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 10:59:10,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-07-22 10:59:10,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 10:59:10,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-07-22 10:59:10,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=3975, Unknown=0, NotChecked=0, Total=4290 [2022-07-22 10:59:10,264 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 66 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:16,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 10:59:16,402 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2022-07-22 10:59:16,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-22 10:59:16,402 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-07-22 10:59:16,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 10:59:16,403 INFO L225 Difference]: With dead ends: 126 [2022-07-22 10:59:16,403 INFO L226 Difference]: Without dead ends: 81 [2022-07-22 10:59:16,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2251 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=691, Invalid=7681, Unknown=0, NotChecked=0, Total=8372 [2022-07-22 10:59:16,406 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 29 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 111 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 10:59:16,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 220 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 282 Invalid, 0 Unknown, 111 Unchecked, 0.8s Time] [2022-07-22 10:59:16,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-07-22 10:59:16,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-07-22 10:59:16,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.1375) internal successors, (91), 80 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:16,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2022-07-22 10:59:16,417 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 36 [2022-07-22 10:59:16,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 10:59:16,418 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2022-07-22 10:59:16,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:16,418 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2022-07-22 10:59:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-22 10:59:16,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:59:16,419 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:59:16,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 10:59:16,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:59:16,632 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:59:16,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:59:16,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1245131882, now seen corresponding path program 6 times [2022-07-22 10:59:16,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:59:16,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895362227] [2022-07-22 10:59:16,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:59:16,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:59:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:59:16,696 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-22 10:59:16,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:59:16,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895362227] [2022-07-22 10:59:16,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895362227] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 10:59:16,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963409773] [2022-07-22 10:59:16,697 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-22 10:59:16,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:59:16,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 10:59:16,699 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 10:59:16,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 10:59:16,790 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-07-22 10:59:16,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 10:59:16,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 10:59:16,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 10:59:16,862 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-22 10:59:16,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 10:59:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-22 10:59:16,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963409773] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 10:59:16,903 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 10:59:16,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-07-22 10:59:16,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83924801] [2022-07-22 10:59:16,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 10:59:16,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 10:59:16,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 10:59:16,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 10:59:16,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-07-22 10:59:16,907 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:17,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 10:59:17,100 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2022-07-22 10:59:17,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 10:59:17,100 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-07-22 10:59:17,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 10:59:17,101 INFO L225 Difference]: With dead ends: 104 [2022-07-22 10:59:17,101 INFO L226 Difference]: Without dead ends: 74 [2022-07-22 10:59:17,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2022-07-22 10:59:17,102 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 107 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 10:59:17,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 79 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 10:59:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-22 10:59:17,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 43. [2022-07-22 10:59:17,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-07-22 10:59:17,112 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 36 [2022-07-22 10:59:17,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 10:59:17,113 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-07-22 10:59:17,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 10:59:17,113 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-07-22 10:59:17,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-22 10:59:17,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 10:59:17,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 10:59:17,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 10:59:17,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:59:17,328 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 10:59:17,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 10:59:17,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1201221586, now seen corresponding path program 7 times [2022-07-22 10:59:17,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 10:59:17,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560364222] [2022-07-22 10:59:17,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 10:59:17,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 10:59:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:59:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:59:18,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 10:59:18,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560364222] [2022-07-22 10:59:18,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560364222] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 10:59:18,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752623182] [2022-07-22 10:59:18,595 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-22 10:59:18,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 10:59:18,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 10:59:18,596 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 10:59:18,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 10:59:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 10:59:18,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 83 conjunts are in the unsatisfiable core [2022-07-22 10:59:18,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 10:59:18,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 10:59:18,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-22 10:59:18,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-07-22 10:59:18,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:18,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-07-22 10:59:18,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:18,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:18,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:18,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-07-22 10:59:18,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:18,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:18,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:18,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 51 [2022-07-22 10:59:19,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,038 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:19,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2022-07-22 10:59:19,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 49 [2022-07-22 10:59:19,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:19,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 61 [2022-07-22 10:59:19,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:19,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-07-22 10:59:19,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:19,677 INFO L356 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-07-22 10:59:19,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 50 [2022-07-22 10:59:19,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:19,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 10:59:19,869 INFO L356 Elim1Store]: treesize reduction 38, result has 46.5 percent of original size [2022-07-22 10:59:19,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 52 [2022-07-22 10:59:25,735 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 45 DAG size of output: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 10:59:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:27,089 INFO L356 Elim1Store]: treesize reduction 53, result has 26.4 percent of original size [2022-07-22 10:59:27,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 62 [2022-07-22 10:59:28,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 10:59:28,558 INFO L356 Elim1Store]: treesize reduction 53, result has 26.4 percent of original size [2022-07-22 10:59:28,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 62 [2022-07-22 10:59:30,186 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 10:59:30,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 70 [2022-07-22 10:59:30,220 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 10:59:30,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 10:59:32,363 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_149|)) (forall ((v_ArrVal_519 Int)) (= (+ c_~N~0 2) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_149|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_519) |c_ULTIMATE.start_main_~b~0#1.offset|))))) is different from false [2022-07-22 10:59:32,792 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int) (v_ArrVal_519 Int) (v_ArrVal_516 Int)) (or (= (+ c_~N~0 2) (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_516) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_149|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_519) |c_ULTIMATE.start_main_~b~0#1.offset|)) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_149|)))) is different from false [2022-07-22 10:59:34,801 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_150| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_150|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int) (v_ArrVal_519 Int) (v_ArrVal_516 Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_150| 1) |v_ULTIMATE.start_main_~i~0#1_149|)) (= (+ c_~N~0 2) (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_150|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_516) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_149|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_519) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) is different from false [2022-07-22 10:59:36,818 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|v_ULTIMATE.start_main_~i~0#1_150| Int) (v_ArrVal_519 Int) (v_ArrVal_516 Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_150|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_150| 1) |v_ULTIMATE.start_main_~i~0#1_149|)) (= (+ c_~N~0 2) (select (store (store (let ((.cse0 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (store (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)) 1))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_150|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_516) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_149|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_519) |c_ULTIMATE.start_main_~b~0#1.offset|)))) is different from false [2022-07-22 10:59:39,902 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_153| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|v_ULTIMATE.start_main_~i~0#1_150| Int) (v_ArrVal_519 Int) (v_ArrVal_516 Int) (v_ArrVal_512 Int)) (or (= (+ c_~N~0 2) (select (store (store (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_153|)) v_ArrVal_512))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_150|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_516) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_149|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_519) |c_ULTIMATE.start_main_~b~0#1.offset|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_150| 1) |v_ULTIMATE.start_main_~i~0#1_149|)) (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_150|)))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_153|)))) is different from false