./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array23_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array23_pattern.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 e6bb9e1c9705c406859f1248122e92b7c01da6449c586b213f4fa087ea45e218 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 21:46:50,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 21:46:50,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 21:46:50,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 21:46:50,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 21:46:50,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 21:46:50,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 21:46:50,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 21:46:50,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 21:46:50,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 21:46:50,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 21:46:50,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 21:46:50,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 21:46:50,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 21:46:50,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 21:46:50,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 21:46:50,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 21:46:50,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 21:46:50,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 21:46:50,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 21:46:50,580 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 21:46:50,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 21:46:50,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 21:46:50,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 21:46:50,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 21:46:50,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 21:46:50,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 21:46:50,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 21:46:50,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 21:46:50,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 21:46:50,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 21:46:50,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 21:46:50,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 21:46:50,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 21:46:50,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 21:46:50,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 21:46:50,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 21:46:50,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 21:46:50,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 21:46:50,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 21:46:50,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 21:46:50,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 21:46:50,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 21:46:50,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 21:46:50,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 21:46:50,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 21:46:50,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 21:46:50,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 21:46:50,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 21:46:50,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 21:46:50,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 21:46:50,619 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 21:46:50,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 21:46:50,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 21:46:50,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 21:46:50,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 21:46:50,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 21:46:50,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 21:46:50,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 21:46:50,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 21:46:50,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 21:46:50,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 21:46:50,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 21:46:50,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 21:46:50,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 21:46:50,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 21:46:50,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 21:46:50,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:46:50,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 21:46:50,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 21:46:50,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 21:46:50,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 21:46:50,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 21:46:50,623 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 21:46:50,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 21:46:50,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 21:46:50,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6bb9e1c9705c406859f1248122e92b7c01da6449c586b213f4fa087ea45e218 [2022-07-20 21:46:50,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 21:46:50,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 21:46:50,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 21:46:50,805 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 21:46:50,805 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 21:46:50,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array23_pattern.c [2022-07-20 21:46:50,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19cd57a89/ec7763c549cb492da272a7cea907eb40/FLAG3424fbc51 [2022-07-20 21:46:51,166 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 21:46:51,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array23_pattern.c [2022-07-20 21:46:51,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19cd57a89/ec7763c549cb492da272a7cea907eb40/FLAG3424fbc51 [2022-07-20 21:46:51,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19cd57a89/ec7763c549cb492da272a7cea907eb40 [2022-07-20 21:46:51,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 21:46:51,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 21:46:51,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 21:46:51,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 21:46:51,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 21:46:51,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9f325d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51, skipping insertion in model container [2022-07-20 21:46:51,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 21:46:51,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 21:46:51,722 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-patterns/array23_pattern.c[1347,1360] [2022-07-20 21:46:51,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:46:51,769 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 21:46:51,780 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-patterns/array23_pattern.c[1347,1360] [2022-07-20 21:46:51,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:46:51,799 INFO L208 MainTranslator]: Completed translation [2022-07-20 21:46:51,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51 WrapperNode [2022-07-20 21:46:51,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 21:46:51,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 21:46:51,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 21:46:51,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 21:46:51,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,829 INFO L137 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2022-07-20 21:46:51,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 21:46:51,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 21:46:51,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 21:46:51,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 21:46:51,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 21:46:51,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 21:46:51,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 21:46:51,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 21:46:51,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (1/1) ... [2022-07-20 21:46:51,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:46:51,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:51,870 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) [2022-07-20 21:46:51,875 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 [2022-07-20 21:46:51,892 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2022-07-20 21:46:51,892 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2022-07-20 21:46:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 21:46:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 21:46:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 21:46:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 21:46:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 21:46:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 21:46:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 21:46:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 21:46:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 21:46:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 21:46:51,939 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 21:46:51,940 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 21:46:52,109 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 21:46:52,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 21:46:52,113 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-20 21:46:52,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:46:52 BoogieIcfgContainer [2022-07-20 21:46:52,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 21:46:52,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 21:46:52,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 21:46:52,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 21:46:52,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:46:51" (1/3) ... [2022-07-20 21:46:52,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a6692b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:46:52, skipping insertion in model container [2022-07-20 21:46:52,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:46:51" (2/3) ... [2022-07-20 21:46:52,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a6692b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:46:52, skipping insertion in model container [2022-07-20 21:46:52,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:46:52" (3/3) ... [2022-07-20 21:46:52,120 INFO L111 eAbstractionObserver]: Analyzing ICFG array23_pattern.c [2022-07-20 21:46:52,131 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 21:46:52,131 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 21:46:52,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 21:46:52,166 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@246e4e4c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@256256a2 [2022-07-20 21:46:52,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 21:46:52,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:46:52,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-20 21:46:52,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:52,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:46:52,176 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:52,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:52,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1798908762, now seen corresponding path program 1 times [2022-07-20 21:46:52,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:52,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726073259] [2022-07-20 21:46:52,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:52,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:52,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 21:46:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:52,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:46:52,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:52,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726073259] [2022-07-20 21:46:52,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726073259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:46:52,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:46:52,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 21:46:52,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986823681] [2022-07-20 21:46:52,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:46:52,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 21:46:52,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:52,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 21:46:52,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 21:46:52,363 INFO L87 Difference]: Start difference. First operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 21:46:52,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:52,384 INFO L93 Difference]: Finished difference Result 79 states and 117 transitions. [2022-07-20 21:46:52,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 21:46:52,386 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-07-20 21:46:52,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:52,390 INFO L225 Difference]: With dead ends: 79 [2022-07-20 21:46:52,390 INFO L226 Difference]: Without dead ends: 37 [2022-07-20 21:46:52,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 21:46:52,397 INFO L413 NwaCegarLoop]: 51 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, 51 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 [2022-07-20 21:46:52,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:46:52,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-20 21:46:52,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-07-20 21:46:52,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:46:52,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2022-07-20 21:46:52,427 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 15 [2022-07-20 21:46:52,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:52,428 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2022-07-20 21:46:52,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 21:46:52,428 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2022-07-20 21:46:52,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 21:46:52,431 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:52,431 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:46:52,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 21:46:52,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:52,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:52,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1909329698, now seen corresponding path program 1 times [2022-07-20 21:46:52,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:52,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320497877] [2022-07-20 21:46:52,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:52,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:52,465 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:52,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650143700] [2022-07-20 21:46:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:52,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:52,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:52,476 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) [2022-07-20 21:46:52,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 21:46:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:52,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 21:46:52,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:52,624 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-20 21:46:52,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:46:52,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:52,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320497877] [2022-07-20 21:46:52,625 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:52,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650143700] [2022-07-20 21:46:52,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650143700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:46:52,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:46:52,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 21:46:52,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909917261] [2022-07-20 21:46:52,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:46:52,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 21:46:52,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:52,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 21:46:52,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 21:46:52,632 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:46:52,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:52,659 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2022-07-20 21:46:52,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 21:46:52,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2022-07-20 21:46:52,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:52,663 INFO L225 Difference]: With dead ends: 44 [2022-07-20 21:46:52,663 INFO L226 Difference]: Without dead ends: 40 [2022-07-20 21:46:52,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:46:52,665 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 12 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:52,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 110 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:46:52,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-07-20 21:46:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-07-20 21:46:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:46:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2022-07-20 21:46:52,676 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 42 [2022-07-20 21:46:52,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:52,678 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-07-20 21:46:52,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:46:52,678 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-07-20 21:46:52,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-20 21:46:52,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:52,680 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:46:52,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:52,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:52,889 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:52,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:52,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1786751912, now seen corresponding path program 1 times [2022-07-20 21:46:52,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:52,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293676387] [2022-07-20 21:46:52,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:52,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:52,900 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:52,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390851511] [2022-07-20 21:46:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:52,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:52,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:52,904 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) [2022-07-20 21:46:52,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 21:46:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:52,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 21:46:52,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-20 21:46:53,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:46:53,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:53,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293676387] [2022-07-20 21:46:53,019 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:53,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390851511] [2022-07-20 21:46:53,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390851511] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:46:53,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:46:53,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 21:46:53,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190998208] [2022-07-20 21:46:53,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:46:53,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 21:46:53,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:53,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 21:46:53,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:46:53,021 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:46:53,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:53,147 INFO L93 Difference]: Finished difference Result 83 states and 106 transitions. [2022-07-20 21:46:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 21:46:53,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2022-07-20 21:46:53,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:53,148 INFO L225 Difference]: With dead ends: 83 [2022-07-20 21:46:53,148 INFO L226 Difference]: Without dead ends: 50 [2022-07-20 21:46:53,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-20 21:46:53,149 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 25 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:53,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 128 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:46:53,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-20 21:46:53,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2022-07-20 21:46:53,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:46:53,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2022-07-20 21:46:53,154 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 47 [2022-07-20 21:46:53,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:53,154 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2022-07-20 21:46:53,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:46:53,155 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2022-07-20 21:46:53,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-20 21:46:53,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:53,156 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:46:53,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:53,363 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,SelfDestructingSolverStorable2 [2022-07-20 21:46:53,364 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2075657686, now seen corresponding path program 1 times [2022-07-20 21:46:53,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:53,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546740106] [2022-07-20 21:46:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:53,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:53,376 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:53,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630138329] [2022-07-20 21:46:53,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:53,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:53,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:53,377 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) [2022-07-20 21:46:53,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 21:46:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:53,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 21:46:53,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-20 21:46:53,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:46:53,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:53,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546740106] [2022-07-20 21:46:53,465 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:53,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630138329] [2022-07-20 21:46:53,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630138329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:46:53,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:46:53,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 21:46:53,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033214544] [2022-07-20 21:46:53,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:46:53,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 21:46:53,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:53,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 21:46:53,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 21:46:53,468 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:46:53,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:53,507 INFO L93 Difference]: Finished difference Result 80 states and 103 transitions. [2022-07-20 21:46:53,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 21:46:53,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2022-07-20 21:46:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:53,510 INFO L225 Difference]: With dead ends: 80 [2022-07-20 21:46:53,510 INFO L226 Difference]: Without dead ends: 44 [2022-07-20 21:46:53,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:46:53,513 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 28 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:53,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 77 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:46:53,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-07-20 21:46:53,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2022-07-20 21:46:53,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:46:53,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2022-07-20 21:46:53,526 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 50 [2022-07-20 21:46:53,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:53,526 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2022-07-20 21:46:53,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:46:53,526 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2022-07-20 21:46:53,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-20 21:46:53,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:53,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:46:53,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:53,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:53,743 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:53,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:53,744 INFO L85 PathProgramCache]: Analyzing trace with hash 874891816, now seen corresponding path program 1 times [2022-07-20 21:46:53,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:53,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7423960] [2022-07-20 21:46:53,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:53,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:53,756 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:53,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [944118844] [2022-07-20 21:46:53,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:53,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:53,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:53,779 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) [2022-07-20 21:46:53,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 21:46:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:53,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 21:46:53,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-20 21:46:53,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:46:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-20 21:46:53,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:53,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7423960] [2022-07-20 21:46:53,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:53,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944118844] [2022-07-20 21:46:53,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944118844] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:46:53,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:46:53,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-20 21:46:53,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280896812] [2022-07-20 21:46:53,949 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:46:53,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 21:46:53,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:53,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 21:46:53,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-20 21:46:53,951 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 21:46:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:54,055 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2022-07-20 21:46:54,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 21:46:54,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2022-07-20 21:46:54,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:54,056 INFO L225 Difference]: With dead ends: 87 [2022-07-20 21:46:54,056 INFO L226 Difference]: Without dead ends: 51 [2022-07-20 21:46:54,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-07-20 21:46:54,057 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 80 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:54,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 105 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:46:54,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-20 21:46:54,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2022-07-20 21:46:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:46:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2022-07-20 21:46:54,061 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 52 [2022-07-20 21:46:54,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:54,062 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2022-07-20 21:46:54,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 21:46:54,062 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2022-07-20 21:46:54,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-20 21:46:54,063 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:54,063 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:46:54,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:54,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:54,280 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:54,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:54,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1211966936, now seen corresponding path program 2 times [2022-07-20 21:46:54,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:54,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174039879] [2022-07-20 21:46:54,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:54,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:54,289 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:54,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195904336] [2022-07-20 21:46:54,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 21:46:54,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:54,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:54,290 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) [2022-07-20 21:46:54,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 21:46:54,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 21:46:54,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:46:54,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 21:46:54,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-20 21:46:54,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:46:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-20 21:46:54,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:54,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174039879] [2022-07-20 21:46:54,427 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:54,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195904336] [2022-07-20 21:46:54,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195904336] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:46:54,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:46:54,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-20 21:46:54,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126856417] [2022-07-20 21:46:54,428 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:46:54,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 21:46:54,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:54,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 21:46:54,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-07-20 21:46:54,429 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 21:46:54,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:54,558 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2022-07-20 21:46:54,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 21:46:54,558 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2022-07-20 21:46:54,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:54,560 INFO L225 Difference]: With dead ends: 108 [2022-07-20 21:46:54,560 INFO L226 Difference]: Without dead ends: 75 [2022-07-20 21:46:54,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-07-20 21:46:54,563 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 51 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:54,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 181 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:46:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-07-20 21:46:54,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2022-07-20 21:46:54,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 54 states have internal predecessors, (64), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:46:54,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2022-07-20 21:46:54,581 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 56 [2022-07-20 21:46:54,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:54,581 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2022-07-20 21:46:54,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 21:46:54,581 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2022-07-20 21:46:54,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-20 21:46:54,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:54,582 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:46:54,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:54,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:54,799 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:54,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:54,799 INFO L85 PathProgramCache]: Analyzing trace with hash -511912674, now seen corresponding path program 3 times [2022-07-20 21:46:54,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:54,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320557446] [2022-07-20 21:46:54,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:54,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:54,808 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:54,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554468353] [2022-07-20 21:46:54,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-20 21:46:54,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:54,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:54,810 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) [2022-07-20 21:46:54,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-20 21:46:55,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-07-20 21:46:55,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:46:55,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 102 conjunts are in the unsatisfiable core [2022-07-20 21:46:55,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:55,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 61 treesize of output 56 [2022-07-20 21:46:55,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 19 treesize of output 18 [2022-07-20 21:46:55,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 21 treesize of output 20 [2022-07-20 21:46:55,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 74 treesize of output 67 [2022-07-20 21:46:55,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:55,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:55,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:46:55,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 143 [2022-07-20 21:46:55,865 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-20 21:46:56,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 77 treesize of output 68 [2022-07-20 21:46:56,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 150 [2022-07-20 21:46:56,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 26 [2022-07-20 21:46:56,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 96 treesize of output 85 [2022-07-20 21:46:56,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 187 [2022-07-20 21:46:56,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:56,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:46:56,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:46:56,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:46:56,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 36 [2022-07-20 21:46:57,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 108 treesize of output 95 [2022-07-20 21:46:57,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:57,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:57,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:57,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:57,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:57,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:57,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:57,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:57,154 INFO L356 Elim1Store]: treesize reduction 292, result has 12.8 percent of original size [2022-07-20 21:46:57,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 201 [2022-07-20 21:46:57,170 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-20 21:47:31,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 400 treesize of output 379 [2022-07-20 21:47:31,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:31,467 INFO L356 Elim1Store]: treesize reduction 497, result has 0.2 percent of original size [2022-07-20 21:47:31,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 25 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 508 treesize of output 1195 [2022-07-20 21:47:32,720 WARN L234 Elim1Store]: Array PQE input equivalent to false