./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-tiling/tcpy.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-tiling/tcpy.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 a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 09:52:58,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 09:52:58,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 09:52:58,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 09:52:58,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 09:52:58,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 09:52:58,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 09:52:58,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 09:52:58,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 09:52:58,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 09:52:58,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 09:52:58,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 09:52:58,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 09:52:58,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 09:52:58,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 09:52:58,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 09:52:58,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 09:52:58,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 09:52:58,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 09:52:59,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 09:52:59,001 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 09:52:59,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 09:52:59,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 09:52:59,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 09:52:59,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 09:52:59,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 09:52:59,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 09:52:59,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 09:52:59,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 09:52:59,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 09:52:59,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 09:52:59,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 09:52:59,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 09:52:59,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 09:52:59,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 09:52:59,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 09:52:59,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 09:52:59,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 09:52:59,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 09:52:59,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 09:52:59,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 09:52:59,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 09:52:59,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 09:52:59,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 09:52:59,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 09:52:59,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 09:52:59,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 09:52:59,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 09:52:59,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 09:52:59,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 09:52:59,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 09:52:59,037 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 09:52:59,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 09:52:59,037 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 09:52:59,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 09:52:59,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 09:52:59,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 09:52:59,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 09:52:59,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 09:52:59,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 09:52:59,039 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 09:52:59,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 09:52:59,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 09:52:59,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 09:52:59,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 09:52:59,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 09:52:59,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 09:52:59,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 09:52:59,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 09:52:59,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 09:52:59,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 09:52:59,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 09:52:59,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 09:52:59,041 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 09:52:59,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 09:52:59,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 09:52:59,042 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 [2022-07-22 09:52:59,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 09:52:59,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 09:52:59,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 09:52:59,262 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 09:52:59,263 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 09:52:59,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-tiling/tcpy.c [2022-07-22 09:52:59,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb8ea8bba/cce1ecd73a604d9e851fd470e4e53fad/FLAG2966d63aa [2022-07-22 09:52:59,709 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 09:52:59,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-tiling/tcpy.c [2022-07-22 09:52:59,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb8ea8bba/cce1ecd73a604d9e851fd470e4e53fad/FLAG2966d63aa [2022-07-22 09:52:59,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb8ea8bba/cce1ecd73a604d9e851fd470e4e53fad [2022-07-22 09:52:59,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 09:52:59,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 09:52:59,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 09:52:59,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 09:52:59,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 09:52:59,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:52:59,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa4a2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59, skipping insertion in model container [2022-07-22 09:52:59,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:52:59,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 09:52:59,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 09:52:59,928 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-tiling/tcpy.c[395,408] [2022-07-22 09:52:59,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 09:52:59,950 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 09:52:59,959 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-tiling/tcpy.c[395,408] [2022-07-22 09:52:59,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 09:52:59,974 INFO L208 MainTranslator]: Completed translation [2022-07-22 09:52:59,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59 WrapperNode [2022-07-22 09:52:59,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 09:52:59,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 09:52:59,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 09:52:59,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 09:52:59,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,018 INFO L137 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-07-22 09:53:00,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 09:53:00,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 09:53:00,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 09:53:00,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 09:53:00,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 09:53:00,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 09:53:00,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 09:53:00,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 09:53:00,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (1/1) ... [2022-07-22 09:53:00,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 09:53:00,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:53:00,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 09:53:00,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 09:53:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 09:53:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 09:53:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 09:53:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 09:53:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 09:53:00,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 09:53:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 09:53:00,153 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 09:53:00,154 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 09:53:00,274 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 09:53:00,279 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 09:53:00,279 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-22 09:53:00,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:53:00 BoogieIcfgContainer [2022-07-22 09:53:00,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 09:53:00,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 09:53:00,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 09:53:00,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 09:53:00,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:52:59" (1/3) ... [2022-07-22 09:53:00,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f5339f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:53:00, skipping insertion in model container [2022-07-22 09:53:00,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:52:59" (2/3) ... [2022-07-22 09:53:00,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f5339f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:53:00, skipping insertion in model container [2022-07-22 09:53:00,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:53:00" (3/3) ... [2022-07-22 09:53:00,289 INFO L111 eAbstractionObserver]: Analyzing ICFG tcpy.c [2022-07-22 09:53:00,300 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 09:53:00,301 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 09:53:00,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 09:53:00,344 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@16a45338, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7036c16e [2022-07-22 09:53:00,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 09:53:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 09:53:00,352 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:53:00,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:53:00,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:53:00,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:53:00,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1608152958, now seen corresponding path program 1 times [2022-07-22 09:53:00,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:53:00,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740198900] [2022-07-22 09:53:00,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:53:00,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:53:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:53:00,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 09:53:00,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:53:00,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740198900] [2022-07-22 09:53:00,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740198900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 09:53:00,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 09:53:00,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 09:53:00,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434663088] [2022-07-22 09:53:00,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 09:53:00,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 09:53:00,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:53:00,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 09:53:00,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 09:53:00,508 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:53:00,521 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2022-07-22 09:53:00,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 09:53:00,523 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-22 09:53:00,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:53:00,529 INFO L225 Difference]: With dead ends: 37 [2022-07-22 09:53:00,530 INFO L226 Difference]: Without dead ends: 17 [2022-07-22 09:53:00,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 09:53:00,539 INFO L413 NwaCegarLoop]: 25 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, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 09:53:00,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 09:53:00,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-22 09:53:00,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-22 09:53:00,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-07-22 09:53:00,561 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-07-22 09:53:00,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:53:00,561 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-07-22 09:53:00,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,562 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-07-22 09:53:00,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 09:53:00,562 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:53:00,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:53:00,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 09:53:00,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:53:00,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:53:00,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1873320706, now seen corresponding path program 1 times [2022-07-22 09:53:00,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:53:00,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717444271] [2022-07-22 09:53:00,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:53:00,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:53:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:53:00,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 09:53:00,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:53:00,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717444271] [2022-07-22 09:53:00,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717444271] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 09:53:00,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 09:53:00,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 09:53:00,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136570698] [2022-07-22 09:53:00,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 09:53:00,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 09:53:00,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:53:00,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 09:53:00,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 09:53:00,641 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:53:00,668 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-07-22 09:53:00,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 09:53:00,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-22 09:53:00,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:53:00,669 INFO L225 Difference]: With dead ends: 31 [2022-07-22 09:53:00,669 INFO L226 Difference]: Without dead ends: 19 [2022-07-22 09:53:00,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 09:53:00,671 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 09:53:00,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 09:53:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-22 09:53:00,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-07-22 09:53:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-07-22 09:53:00,675 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-07-22 09:53:00,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:53:00,675 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-07-22 09:53:00,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-07-22 09:53:00,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 09:53:00,676 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:53:00,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:53:00,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 09:53:00,677 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:53:00,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:53:00,678 INFO L85 PathProgramCache]: Analyzing trace with hash -270521828, now seen corresponding path program 1 times [2022-07-22 09:53:00,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:53:00,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163367382] [2022-07-22 09:53:00,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:53:00,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:53:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:53:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 09:53:00,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:53:00,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163367382] [2022-07-22 09:53:00,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163367382] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 09:53:00,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923393992] [2022-07-22 09:53:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:53:00,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:53:00,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:53:00,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 09:53:00,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 09:53:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:53:00,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 09:53:00,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 09:53:00,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 09:53:00,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 09:53:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 09:53:00,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923393992] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 09:53:00,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 09:53:00,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-22 09:53:00,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743551067] [2022-07-22 09:53:00,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 09:53:00,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 09:53:00,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:53:00,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 09:53:00,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-07-22 09:53:00,940 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:53:00,987 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-07-22 09:53:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 09:53:00,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-22 09:53:00,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:53:00,988 INFO L225 Difference]: With dead ends: 33 [2022-07-22 09:53:00,988 INFO L226 Difference]: Without dead ends: 21 [2022-07-22 09:53:00,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-07-22 09:53:00,990 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 09:53:00,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 32 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 09:53:00,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-22 09:53:00,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-07-22 09:53:00,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-07-22 09:53:00,995 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 14 [2022-07-22 09:53:00,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:53:00,995 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-07-22 09:53:00,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:00,995 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-07-22 09:53:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 09:53:00,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:53:00,996 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:53:01,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 09:53:01,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:53:01,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:53:01,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:53:01,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1874059334, now seen corresponding path program 2 times [2022-07-22 09:53:01,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:53:01,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113448132] [2022-07-22 09:53:01,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:53:01,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:53:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:53:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 09:53:01,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:53:01,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113448132] [2022-07-22 09:53:01,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113448132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 09:53:01,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 09:53:01,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 09:53:01,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405070668] [2022-07-22 09:53:01,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 09:53:01,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 09:53:01,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:53:01,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 09:53:01,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-22 09:53:01,433 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:01,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:53:01,478 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-07-22 09:53:01,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 09:53:01,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-22 09:53:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:53:01,480 INFO L225 Difference]: With dead ends: 35 [2022-07-22 09:53:01,480 INFO L226 Difference]: Without dead ends: 28 [2022-07-22 09:53:01,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-22 09:53:01,482 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 42 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 09:53:01,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 17 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 09:53:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-22 09:53:01,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2022-07-22 09:53:01,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:01,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-07-22 09:53:01,495 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2022-07-22 09:53:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:53:01,496 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-07-22 09:53:01,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-07-22 09:53:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 09:53:01,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:53:01,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:53:01,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 09:53:01,498 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:53:01,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:53:01,499 INFO L85 PathProgramCache]: Analyzing trace with hash 265660728, now seen corresponding path program 1 times [2022-07-22 09:53:01,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:53:01,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009412536] [2022-07-22 09:53:01,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:53:01,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:53:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:53:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 09:53:01,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:53:01,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009412536] [2022-07-22 09:53:01,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009412536] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 09:53:01,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136003226] [2022-07-22 09:53:01,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:53:01,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:53:01,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:53:01,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 09:53:01,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 09:53:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:53:01,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-22 09:53:01,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 09:53:01,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-22 09:53:01,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:01,944 INFO L356 Elim1Store]: treesize reduction 26, result has 40.9 percent of original size [2022-07-22 09:53:01,944 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 1 case distinctions, treesize of input 23 treesize of output 33 [2022-07-22 09:53:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 09:53:02,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 09:53:02,062 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 09:53:02,062 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 474 treesize of output 450 [2022-07-22 09:53:02,075 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 220 treesize of output 184 [2022-07-22 09:53:04,054 INFO L356 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-07-22 09:53:04,054 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 851 treesize of output 754 [2022-07-22 09:53:04,118 INFO L356 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-07-22 09:53:04,119 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 827 treesize of output 1 [2022-07-22 09:53:04,133 INFO L356 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-07-22 09:53:04,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 659 treesize of output 1 [2022-07-22 09:53:04,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,151 INFO L356 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-07-22 09:53:04,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 683 treesize of output 1 [2022-07-22 09:53:04,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,198 INFO L356 Elim1Store]: treesize reduction 17, result has 48.5 percent of original size [2022-07-22 09:53:04,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 154 [2022-07-22 09:53:04,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,253 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 364 treesize of output 356 [2022-07-22 09:53:04,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 202 treesize of output 198 [2022-07-22 09:53:04,319 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-22 09:53:04,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 155 treesize of output 146 [2022-07-22 09:53:04,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 204 [2022-07-22 09:53:04,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2022-07-22 09:53:04,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 1 [2022-07-22 09:53:04,420 INFO L356 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-07-22 09:53:04,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 313 treesize of output 1 [2022-07-22 09:53:04,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,514 INFO L356 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2022-07-22 09:53:04,514 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 175 treesize of output 143 [2022-07-22 09:53:04,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-07-22 09:53:04,563 INFO L356 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-07-22 09:53:04,563 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 313 treesize of output 1 [2022-07-22 09:53:04,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,579 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 1 [2022-07-22 09:53:04,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,590 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 234 treesize of output 1 [2022-07-22 09:53:04,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,604 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 167 treesize of output 1 [2022-07-22 09:53:04,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-07-22 09:53:04,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,620 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 313 treesize of output 1 [2022-07-22 09:53:04,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,629 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 167 treesize of output 1 [2022-07-22 09:53:04,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,648 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 851 treesize of output 1 [2022-07-22 09:53:04,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,658 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 491 treesize of output 1 [2022-07-22 09:53:04,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,672 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 659 treesize of output 1 [2022-07-22 09:53:04,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-07-22 09:53:04,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,695 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 234 treesize of output 1 [2022-07-22 09:53:04,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,706 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 246 treesize of output 1 [2022-07-22 09:53:04,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,727 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 163 treesize of output 1 [2022-07-22 09:53:04,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,807 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 246 treesize of output 1 [2022-07-22 09:53:04,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,822 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-07-22 09:53:04,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 246 treesize of output 1 [2022-07-22 09:53:04,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,908 INFO L356 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-07-22 09:53:04,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 242 treesize of output 1 [2022-07-22 09:53:04,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:04,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:04,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:05,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-07-22 09:53:05,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:05,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:05,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-07-22 09:53:05,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:05,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:05,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-07-22 09:53:05,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:05,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-07-22 09:53:05,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-07-22 09:53:05,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-07-22 09:53:05,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-07-22 09:53:05,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:05,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:05,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 09:53:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 09:53:05,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136003226] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 09:53:05,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 09:53:05,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-07-22 09:53:05,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973526743] [2022-07-22 09:53:05,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 09:53:05,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 09:53:05,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:53:05,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 09:53:05,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-07-22 09:53:05,229 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:05,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:53:05,328 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-07-22 09:53:05,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 09:53:05,329 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-22 09:53:05,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:53:05,329 INFO L225 Difference]: With dead ends: 29 [2022-07-22 09:53:05,329 INFO L226 Difference]: Without dead ends: 27 [2022-07-22 09:53:05,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-07-22 09:53:05,330 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 09:53:05,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 67 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 09:53:05,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-22 09:53:05,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2022-07-22 09:53:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:05,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-07-22 09:53:05,334 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2022-07-22 09:53:05,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:53:05,334 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-07-22 09:53:05,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:53:05,335 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-07-22 09:53:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-22 09:53:05,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:53:05,335 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:53:05,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 09:53:05,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:53:05,539 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:53:05,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:53:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1994055598, now seen corresponding path program 1 times [2022-07-22 09:53:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:53:05,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489175902] [2022-07-22 09:53:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:53:05,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:53:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:53:05,940 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 09:53:05,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:53:05,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489175902] [2022-07-22 09:53:05,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489175902] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 09:53:05,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739722324] [2022-07-22 09:53:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:53:05,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:53:05,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:53:05,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 09:53:05,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 09:53:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:53:06,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 36 conjunts are in the unsatisfiable core [2022-07-22 09:53:06,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 09:53:06,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-22 09:53:06,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-22 09:53:06,274 INFO L356 Elim1Store]: treesize reduction 32, result has 27.3 percent of original size [2022-07-22 09:53:06,274 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 1 case distinctions, treesize of input 28 treesize of output 32 [2022-07-22 09:53:06,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 09:53:06,494 INFO L356 Elim1Store]: treesize reduction 12, result has 20.0 percent of original size [2022-07-22 09:53:06,494 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 23 [2022-07-22 09:53:06,511 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 09:53:06,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 09:53:22,031 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_103 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse0 (let ((.cse1 (* 4 c_~SIZE~0))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base|) (+ (- 4) .cse1 |ULTIMATE.start_main_~acopy~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 4) .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (= (select .cse0 (+ |ULTIMATE.start_main_~acopy~0#1.offset| 4)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base| (store .cse0 |ULTIMATE.start_main_~acopy~0#1.offset| v_ArrVal_103)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) is different from false [2022-07-22 09:53:26,338 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 09:53:26,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 4770 treesize of output 3839 [2022-07-22 09:53:26,394 INFO L356 Elim1Store]: treesize reduction 58, result has 52.5 percent of original size [2022-07-22 09:53:26,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 6191 treesize of output 5617 [2022-07-22 09:53:26,435 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 09:53:26,435 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 6363 treesize of output 5919