./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array5_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/array5_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 3dd3ea9d30e76cbd39a744e53feb2b89c359b5b85c7df24161ceaf060cda3b02 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 10:50:20,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 10:50:20,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 10:50:20,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 10:50:20,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 10:50:20,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 10:50:20,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 10:50:20,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 10:50:20,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 10:50:20,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 10:50:20,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 10:50:20,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 10:50:20,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 10:50:20,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 10:50:20,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 10:50:20,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 10:50:20,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 10:50:20,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 10:50:20,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 10:50:20,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 10:50:20,856 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 10:50:20,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 10:50:20,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 10:50:20,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 10:50:20,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 10:50:20,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 10:50:20,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 10:50:20,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 10:50:20,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 10:50:20,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 10:50:20,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 10:50:20,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 10:50:20,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 10:50:20,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 10:50:20,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 10:50:20,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 10:50:20,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 10:50:20,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 10:50:20,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 10:50:20,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 10:50:20,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 10:50:20,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 10:50:20,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 10:50:20,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 10:50:20,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 10:50:20,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 10:50:20,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 10:50:20,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 10:50:20,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 10:50:20,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 10:50:20,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 10:50:20,896 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 10:50:20,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 10:50:20,897 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 10:50:20,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 10:50:20,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 10:50:20,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 10:50:20,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 10:50:20,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 10:50:20,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 10:50:20,898 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 10:50:20,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 10:50:20,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 10:50:20,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 10:50:20,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 10:50:20,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 10:50:20,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 10:50:20,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 10:50:20,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 10:50:20,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 10:50:20,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 10:50:20,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 10:50:20,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 10:50:20,902 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 10:50:20,902 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 10:50:20,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 10:50:20,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dd3ea9d30e76cbd39a744e53feb2b89c359b5b85c7df24161ceaf060cda3b02 [2022-07-13 10:50:21,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 10:50:21,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 10:50:21,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 10:50:21,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 10:50:21,129 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 10:50:21,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array5_pattern.c [2022-07-13 10:50:21,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bac24c6cc/33d300cec1af47aba2bd86c3575f2a00/FLAGd5dd74c40 [2022-07-13 10:50:21,587 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 10:50:21,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array5_pattern.c [2022-07-13 10:50:21,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bac24c6cc/33d300cec1af47aba2bd86c3575f2a00/FLAGd5dd74c40 [2022-07-13 10:50:21,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bac24c6cc/33d300cec1af47aba2bd86c3575f2a00 [2022-07-13 10:50:21,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 10:50:21,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 10:50:21,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 10:50:21,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 10:50:21,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 10:50:21,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4498f0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21, skipping insertion in model container [2022-07-13 10:50:21,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 10:50:21,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 10:50:21,805 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/array5_pattern.c[1890,1903] [2022-07-13 10:50:21,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 10:50:21,845 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 10:50:21,858 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/array5_pattern.c[1890,1903] [2022-07-13 10:50:21,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 10:50:21,897 INFO L208 MainTranslator]: Completed translation [2022-07-13 10:50:21,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21 WrapperNode [2022-07-13 10:50:21,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 10:50:21,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 10:50:21,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 10:50:21,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 10:50:21,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,945 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2022-07-13 10:50:21,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 10:50:21,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 10:50:21,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 10:50:21,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 10:50:21,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 10:50:21,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 10:50:21,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 10:50:21,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 10:50:21,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (1/1) ... [2022-07-13 10:50:21,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 10:50:21,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 10:50:22,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 10:50:22,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 10:50:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 10:50:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 10:50:22,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 10:50:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 10:50:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 10:50:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 10:50:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 10:50:22,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 10:50:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 10:50:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 10:50:22,085 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 10:50:22,087 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 10:50:22,200 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 10:50:22,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 10:50:22,206 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-13 10:50:22,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:50:22 BoogieIcfgContainer [2022-07-13 10:50:22,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 10:50:22,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 10:50:22,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 10:50:22,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 10:50:22,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:50:21" (1/3) ... [2022-07-13 10:50:22,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee8434b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:50:22, skipping insertion in model container [2022-07-13 10:50:22,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:50:21" (2/3) ... [2022-07-13 10:50:22,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee8434b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:50:22, skipping insertion in model container [2022-07-13 10:50:22,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:50:22" (3/3) ... [2022-07-13 10:50:22,214 INFO L111 eAbstractionObserver]: Analyzing ICFG array5_pattern.c [2022-07-13 10:50:22,226 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 10:50:22,227 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 10:50:22,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 10:50:22,303 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@6f75dbd4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@382e2784 [2022-07-13 10:50:22,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 10:50:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 10:50:22,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-13 10:50:22,318 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 10:50:22,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 10:50:22,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 10:50:22,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 10:50:22,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1359011546, now seen corresponding path program 1 times [2022-07-13 10:50:22,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 10:50:22,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066099205] [2022-07-13 10:50:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:22,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 10:50:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 10:50:22,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 10:50:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 10:50:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 10:50:22,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 10:50:22,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066099205] [2022-07-13 10:50:22,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066099205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 10:50:22,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 10:50:22,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 10:50:22,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175515631] [2022-07-13 10:50:22,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 10:50:22,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 10:50:22,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 10:50:22,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 10:50:22,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 10:50:22,489 INFO L87 Difference]: Start difference. First operand has 28 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-07-13 10:50:22,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 10:50:22,503 INFO L93 Difference]: Finished difference Result 53 states and 76 transitions. [2022-07-13 10:50:22,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 10:50:22,505 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 16 [2022-07-13 10:50:22,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 10:50:22,509 INFO L225 Difference]: With dead ends: 53 [2022-07-13 10:50:22,509 INFO L226 Difference]: Without dead ends: 24 [2022-07-13 10:50:22,512 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 [2022-07-13 10:50:22,514 INFO L413 NwaCegarLoop]: 33 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, 33 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 [2022-07-13 10:50:22,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 10:50:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-07-13 10:50:22,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-07-13 10:50:22,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 10:50:22,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-13 10:50:22,546 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2022-07-13 10:50:22,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 10:50:22,546 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-13 10:50:22,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-07-13 10:50:22,547 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-07-13 10:50:22,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 10:50:22,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 10:50:22,548 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 10:50:22,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 10:50:22,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 10:50:22,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 10:50:22,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1765206397, now seen corresponding path program 1 times [2022-07-13 10:50:22,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 10:50:22,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361871306] [2022-07-13 10:50:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:22,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 10:50:22,581 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 10:50:22,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249518130] [2022-07-13 10:50:22,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:22,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 10:50:22,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 10:50:22,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 10:50:22,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 10:50:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 10:50:22,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 10:50:22,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 10:50:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 10:50:22,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 10:50:22,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 10:50:22,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361871306] [2022-07-13 10:50:22,733 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 10:50:22,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249518130] [2022-07-13 10:50:22,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249518130] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 10:50:22,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 10:50:22,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 10:50:22,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493328567] [2022-07-13 10:50:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 10:50:22,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 10:50:22,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 10:50:22,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 10:50:22,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 10:50:22,742 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 10:50:22,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 10:50:22,805 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2022-07-13 10:50:22,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 10:50:22,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-07-13 10:50:22,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 10:50:22,808 INFO L225 Difference]: With dead ends: 55 [2022-07-13 10:50:22,808 INFO L226 Difference]: Without dead ends: 38 [2022-07-13 10:50:22,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 10:50:22,810 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 10:50:22,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 34 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 10:50:22,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-07-13 10:50:22,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2022-07-13 10:50:22,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-13 10:50:22,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-07-13 10:50:22,821 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 25 [2022-07-13 10:50:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 10:50:22,823 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-13 10:50:22,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 10:50:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-07-13 10:50:22,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 10:50:22,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 10:50:22,825 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 10:50:22,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 10:50:23,026 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 [2022-07-13 10:50:23,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 10:50:23,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 10:50:23,027 INFO L85 PathProgramCache]: Analyzing trace with hash 955859771, now seen corresponding path program 1 times [2022-07-13 10:50:23,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 10:50:23,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169373050] [2022-07-13 10:50:23,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:23,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 10:50:23,049 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 10:50:23,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025175620] [2022-07-13 10:50:23,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:23,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 10:50:23,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 10:50:23,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 10:50:23,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 10:50:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 10:50:23,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 10:50:23,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 10:50:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 10:50:23,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 10:50:23,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 10:50:23,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169373050] [2022-07-13 10:50:23,164 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 10:50:23,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025175620] [2022-07-13 10:50:23,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025175620] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 10:50:23,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 10:50:23,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 10:50:23,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696068853] [2022-07-13 10:50:23,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 10:50:23,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 10:50:23,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 10:50:23,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 10:50:23,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 10:50:23,166 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 10:50:23,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 10:50:23,183 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-07-13 10:50:23,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 10:50:23,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-07-13 10:50:23,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 10:50:23,185 INFO L225 Difference]: With dead ends: 33 [2022-07-13 10:50:23,185 INFO L226 Difference]: Without dead ends: 29 [2022-07-13 10:50:23,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 10:50:23,187 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 64 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 [2022-07-13 10:50:23,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 64 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 10:50:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-13 10:50:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-07-13 10:50:23,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-13 10:50:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2022-07-13 10:50:23,192 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 25 [2022-07-13 10:50:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 10:50:23,193 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2022-07-13 10:50:23,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 10:50:23,193 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-07-13 10:50:23,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-13 10:50:23,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 10:50:23,194 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 10:50:23,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 10:50:23,413 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 [2022-07-13 10:50:23,413 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 10:50:23,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 10:50:23,414 INFO L85 PathProgramCache]: Analyzing trace with hash -488527555, now seen corresponding path program 1 times [2022-07-13 10:50:23,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 10:50:23,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055229562] [2022-07-13 10:50:23,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 10:50:23,443 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 10:50:23,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430249351] [2022-07-13 10:50:23,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:23,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 10:50:23,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 10:50:23,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 10:50:23,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 10:50:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 10:50:23,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 10:50:23,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 10:50:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 10:50:23,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 10:50:23,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 10:50:23,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055229562] [2022-07-13 10:50:23,606 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 10:50:23,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430249351] [2022-07-13 10:50:23,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430249351] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 10:50:23,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 10:50:23,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 10:50:23,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973240203] [2022-07-13 10:50:23,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 10:50:23,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 10:50:23,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 10:50:23,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 10:50:23,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 10:50:23,610 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 10:50:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 10:50:23,694 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2022-07-13 10:50:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 10:50:23,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-07-13 10:50:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 10:50:23,696 INFO L225 Difference]: With dead ends: 57 [2022-07-13 10:50:23,696 INFO L226 Difference]: Without dead ends: 33 [2022-07-13 10:50:23,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 10:50:23,698 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 10:50:23,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 62 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 10:50:23,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-13 10:50:23,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2022-07-13 10:50:23,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-13 10:50:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-07-13 10:50:23,704 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 27 [2022-07-13 10:50:23,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 10:50:23,704 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-07-13 10:50:23,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 10:50:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2022-07-13 10:50:23,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-13 10:50:23,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 10:50:23,706 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 10:50:23,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 10:50:23,919 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 [2022-07-13 10:50:23,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 10:50:23,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 10:50:23,920 INFO L85 PathProgramCache]: Analyzing trace with hash -309168389, now seen corresponding path program 1 times [2022-07-13 10:50:23,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 10:50:23,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369391063] [2022-07-13 10:50:23,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:23,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 10:50:23,954 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 10:50:23,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829092764] [2022-07-13 10:50:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:23,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 10:50:23,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 10:50:23,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 10:50:23,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 10:50:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 10:50:24,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 10:50:24,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 10:50:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 10:50:24,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 10:50:24,367 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 10:50:24,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 10:50:24,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369391063] [2022-07-13 10:50:24,367 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 10:50:24,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829092764] [2022-07-13 10:50:24,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829092764] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 10:50:24,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 10:50:24,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-13 10:50:24,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225294369] [2022-07-13 10:50:24,368 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 10:50:24,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 10:50:24,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 10:50:24,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 10:50:24,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-07-13 10:50:24,369 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 11 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 10:50:24,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 10:50:24,704 INFO L93 Difference]: Finished difference Result 124 states and 152 transitions. [2022-07-13 10:50:24,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 10:50:24,705 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 11 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-07-13 10:50:24,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 10:50:24,709 INFO L225 Difference]: With dead ends: 124 [2022-07-13 10:50:24,709 INFO L226 Difference]: Without dead ends: 105 [2022-07-13 10:50:24,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2022-07-13 10:50:24,711 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 181 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 10:50:24,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 183 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 10:50:24,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-13 10:50:24,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 55. [2022-07-13 10:50:24,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 47 states have internal predecessors, (58), 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) [2022-07-13 10:50:24,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2022-07-13 10:50:24,730 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 29 [2022-07-13 10:50:24,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 10:50:24,731 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2022-07-13 10:50:24,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 11 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 10:50:24,731 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2022-07-13 10:50:24,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-13 10:50:24,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 10:50:24,732 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 10:50:24,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 10:50:24,954 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 [2022-07-13 10:50:24,955 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 10:50:24,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 10:50:24,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1010232967, now seen corresponding path program 1 times [2022-07-13 10:50:24,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 10:50:24,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038586596] [2022-07-13 10:50:24,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:24,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 10:50:24,975 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 10:50:24,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980546414] [2022-07-13 10:50:24,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:24,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 10:50:24,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 10:50:24,978 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 10:50:25,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 10:50:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 10:50:25,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 36 conjunts are in the unsatisfiable core [2022-07-13 10:50:25,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 10:50:25,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-13 10:50:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:25,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-07-13 10:50:25,257 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 12 treesize of output 11 [2022-07-13 10:50:25,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-07-13 10:50:25,400 INFO L356 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-07-13 10:50:25,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 23 [2022-07-13 10:50:25,425 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 10:50:25,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 10:50:25,526 INFO L356 Elim1Store]: treesize reduction 21, result has 63.8 percent of original size [2022-07-13 10:50:25,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 114 treesize of output 114 [2022-07-13 10:50:25,555 INFO L356 Elim1Store]: treesize reduction 18, result has 59.1 percent of original size [2022-07-13 10:50:25,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 78 [2022-07-13 10:50:25,573 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 10:50:25,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 179 [2022-07-13 10:50:25,609 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 10:50:25,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 130 treesize of output 150 [2022-07-13 10:50:27,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 58 [2022-07-13 10:50:27,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 185 [2022-07-13 10:50:28,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 10:50:28,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 10:50:28,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038586596] [2022-07-13 10:50:28,401 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 10:50:28,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980546414] [2022-07-13 10:50:28,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980546414] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 10:50:28,402 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 10:50:28,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 23 [2022-07-13 10:50:28,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411131612] [2022-07-13 10:50:28,402 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 10:50:28,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-13 10:50:28,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 10:50:28,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-13 10:50:28,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-07-13 10:50:28,404 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand has 23 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 20 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-13 10:50:28,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 10:50:28,939 INFO L93 Difference]: Finished difference Result 80 states and 96 transitions. [2022-07-13 10:50:28,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 10:50:28,939 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 20 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 29 [2022-07-13 10:50:28,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 10:50:28,941 INFO L225 Difference]: With dead ends: 80 [2022-07-13 10:50:28,941 INFO L226 Difference]: Without dead ends: 72 [2022-07-13 10:50:28,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=830, Unknown=0, NotChecked=0, Total=992 [2022-07-13 10:50:28,942 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 32 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 10:50:28,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 209 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 224 Invalid, 0 Unknown, 14 Unchecked, 0.3s Time] [2022-07-13 10:50:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-07-13 10:50:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2022-07-13 10:50:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 55 states have (on average 1.2) internal successors, (66), 55 states have internal predecessors, (66), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 10:50:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 78 transitions. [2022-07-13 10:50:28,954 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 78 transitions. Word has length 29 [2022-07-13 10:50:28,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 10:50:28,955 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 78 transitions. [2022-07-13 10:50:28,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 20 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-13 10:50:28,956 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 78 transitions. [2022-07-13 10:50:28,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-13 10:50:28,959 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 10:50:28,959 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 10:50:28,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 10:50:29,184 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 [2022-07-13 10:50:29,185 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 10:50:29,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 10:50:29,185 INFO L85 PathProgramCache]: Analyzing trace with hash 256298297, now seen corresponding path program 2 times [2022-07-13 10:50:29,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 10:50:29,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734871830] [2022-07-13 10:50:29,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:29,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 10:50:29,219 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 10:50:29,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432998218] [2022-07-13 10:50:29,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 10:50:29,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 10:50:29,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 10:50:29,224 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 10:50:29,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 10:50:29,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 10:50:29,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 10:50:29,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 10:50:29,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 10:50:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 10:50:29,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 10:50:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 10:50:29,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 10:50:29,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734871830] [2022-07-13 10:50:29,370 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 10:50:29,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432998218] [2022-07-13 10:50:29,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432998218] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 10:50:29,370 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 10:50:29,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-07-13 10:50:29,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222137802] [2022-07-13 10:50:29,371 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 10:50:29,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 10:50:29,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 10:50:29,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 10:50:29,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-13 10:50:29,372 INFO L87 Difference]: Start difference. First operand 65 states and 78 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 10:50:29,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 10:50:29,677 INFO L93 Difference]: Finished difference Result 82 states and 93 transitions. [2022-07-13 10:50:29,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 10:50:29,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-07-13 10:50:29,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 10:50:29,678 INFO L225 Difference]: With dead ends: 82 [2022-07-13 10:50:29,678 INFO L226 Difference]: Without dead ends: 78 [2022-07-13 10:50:29,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-07-13 10:50:29,679 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 10:50:29,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 101 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 10:50:29,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-07-13 10:50:29,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2022-07-13 10:50:29,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 60 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 10:50:29,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2022-07-13 10:50:29,688 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 31 [2022-07-13 10:50:29,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 10:50:29,688 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2022-07-13 10:50:29,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 10:50:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2022-07-13 10:50:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-13 10:50:29,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 10:50:29,689 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 10:50:29,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 10:50:29,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 10:50:29,906 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 10:50:29,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 10:50:29,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1542761403, now seen corresponding path program 3 times [2022-07-13 10:50:29,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 10:50:29,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119044619] [2022-07-13 10:50:29,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 10:50:29,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 10:50:29,941 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 10:50:29,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250955594] [2022-07-13 10:50:29,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 10:50:29,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 10:50:29,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 10:50:29,948 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 10:50:29,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 10:50:30,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-07-13 10:50:30,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 10:50:30,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 65 conjunts are in the unsatisfiable core [2022-07-13 10:50:30,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 10:50:30,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-13 10:50:30,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:30,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-07-13 10:50:30,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-07-13 10:50:30,087 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 8 treesize of output 7 [2022-07-13 10:50:30,090 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 8 treesize of output 7 [2022-07-13 10:50:30,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:30,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 41 [2022-07-13 10:50:30,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-07-13 10:50:30,148 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-07-13 10:50:30,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 18 treesize of output 22 [2022-07-13 10:50:30,163 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-07-13 10:50:30,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 18 treesize of output 22 [2022-07-13 10:50:33,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:33,790 INFO L356 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-07-13 10:50:33,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 102 treesize of output 123 [2022-07-13 10:50:33,862 INFO L356 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-07-13 10:50:33,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 96 [2022-07-13 10:50:34,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:34,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:34,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:34,295 INFO L356 Elim1Store]: treesize reduction 67, result has 40.7 percent of original size [2022-07-13 10:50:34,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 76 [2022-07-13 10:50:34,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:34,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:34,421 INFO L356 Elim1Store]: treesize reduction 31, result has 42.6 percent of original size [2022-07-13 10:50:34,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 51 [2022-07-13 10:50:34,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:34,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:34,655 INFO L356 Elim1Store]: treesize reduction 31, result has 42.6 percent of original size [2022-07-13 10:50:34,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 51 [2022-07-13 10:50:34,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:34,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:34,774 INFO L356 Elim1Store]: treesize reduction 31, result has 42.6 percent of original size [2022-07-13 10:50:34,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 51 [2022-07-13 10:50:35,036 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-13 10:50:35,095 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-13 10:50:35,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:35,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:35,326 INFO L356 Elim1Store]: treesize reduction 67, result has 40.7 percent of original size [2022-07-13 10:50:35,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 76 [2022-07-13 10:50:35,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:35,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:35,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:35,630 INFO L356 Elim1Store]: treesize reduction 67, result has 40.7 percent of original size [2022-07-13 10:50:35,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 76 [2022-07-13 10:50:49,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:49,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 10:50:49,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:49,172 INFO L356 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2022-07-13 10:50:49,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 54 [2022-07-13 10:50:49,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:49,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:49,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:49,449 INFO L356 Elim1Store]: treesize reduction 63, result has 40.0 percent of original size [2022-07-13 10:50:49,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 124 [2022-07-13 10:50:49,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:49,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 10:50:49,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:49,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:49,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 10:50:49,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 10:50:49,643 INFO L356 Elim1Store]: treesize reduction 150, result has 23.1 percent of original size [2022-07-13 10:50:49,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 241 treesize of output 322