./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/reducercommutativity/max10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/reducercommutativity/max10-1.i -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 1223a7fef027dae15fda123c8ce40ec49dc779b7d5d627ded9a670697417439e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 22:18:06,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 22:18:06,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 22:18:06,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 22:18:06,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 22:18:06,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 22:18:06,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 22:18:06,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 22:18:06,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 22:18:06,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 22:18:06,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 22:18:06,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 22:18:06,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 22:18:06,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 22:18:06,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 22:18:06,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 22:18:06,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 22:18:06,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 22:18:06,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 22:18:06,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 22:18:06,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 22:18:06,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 22:18:06,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 22:18:06,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 22:18:06,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 22:18:06,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 22:18:06,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 22:18:06,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 22:18:06,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 22:18:06,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 22:18:06,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 22:18:06,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 22:18:06,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 22:18:06,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 22:18:06,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 22:18:06,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 22:18:06,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 22:18:06,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 22:18:06,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 22:18:06,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 22:18:06,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 22:18:06,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 22:18:06,150 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 22:18:06,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 22:18:06,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 22:18:06,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 22:18:06,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 22:18:06,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 22:18:06,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 22:18:06,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 22:18:06,152 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 22:18:06,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 22:18:06,153 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 22:18:06,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 22:18:06,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 22:18:06,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 22:18:06,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 22:18:06,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 22:18:06,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 22:18:06,154 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 22:18:06,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 22:18:06,154 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 22:18:06,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 22:18:06,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 22:18:06,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 22:18:06,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 22:18:06,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 22:18:06,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 22:18:06,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 22:18:06,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 22:18:06,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 22:18:06,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 22:18:06,157 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 22:18:06,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 22:18:06,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 22:18:06,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 22:18:06,158 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1223a7fef027dae15fda123c8ce40ec49dc779b7d5d627ded9a670697417439e [2021-12-16 22:18:06,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 22:18:06,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 22:18:06,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 22:18:06,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 22:18:06,392 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 22:18:06,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max10-1.i [2021-12-16 22:18:06,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06fcbd0bb/8310f30d184147e6bcc4d246fd96fb0f/FLAGe41fa7954 [2021-12-16 22:18:06,793 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 22:18:06,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max10-1.i [2021-12-16 22:18:06,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06fcbd0bb/8310f30d184147e6bcc4d246fd96fb0f/FLAGe41fa7954 [2021-12-16 22:18:06,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06fcbd0bb/8310f30d184147e6bcc4d246fd96fb0f [2021-12-16 22:18:06,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 22:18:06,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 22:18:06,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 22:18:06,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 22:18:06,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 22:18:06,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:18:06" (1/1) ... [2021-12-16 22:18:06,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f96835d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:06, skipping insertion in model container [2021-12-16 22:18:06,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:18:06" (1/1) ... [2021-12-16 22:18:06,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 22:18:06,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 22:18:06,974 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/reducercommutativity/max10-1.i[1290,1303] [2021-12-16 22:18:06,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 22:18:06,988 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 22:18:07,002 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/reducercommutativity/max10-1.i[1290,1303] [2021-12-16 22:18:07,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 22:18:07,017 INFO L208 MainTranslator]: Completed translation [2021-12-16 22:18:07,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07 WrapperNode [2021-12-16 22:18:07,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 22:18:07,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 22:18:07,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 22:18:07,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 22:18:07,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,055 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2021-12-16 22:18:07,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 22:18:07,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 22:18:07,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 22:18:07,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 22:18:07,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 22:18:07,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 22:18:07,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 22:18:07,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 22:18:07,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (1/1) ... [2021-12-16 22:18:07,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 22:18:07,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:07,124 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) [2021-12-16 22:18:07,132 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 [2021-12-16 22:18:07,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 22:18:07,159 INFO L130 BoogieDeclarations]: Found specification of procedure max [2021-12-16 22:18:07,160 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2021-12-16 22:18:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 22:18:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 22:18:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 22:18:07,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 22:18:07,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 22:18:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 22:18:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 22:18:07,206 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 22:18:07,207 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 22:18:07,300 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 22:18:07,305 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 22:18:07,305 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-16 22:18:07,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:18:07 BoogieIcfgContainer [2021-12-16 22:18:07,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 22:18:07,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 22:18:07,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 22:18:07,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 22:18:07,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 10:18:06" (1/3) ... [2021-12-16 22:18:07,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8ceff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:18:07, skipping insertion in model container [2021-12-16 22:18:07,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:18:07" (2/3) ... [2021-12-16 22:18:07,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8ceff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:18:07, skipping insertion in model container [2021-12-16 22:18:07,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:18:07" (3/3) ... [2021-12-16 22:18:07,315 INFO L111 eAbstractionObserver]: Analyzing ICFG max10-1.i [2021-12-16 22:18:07,319 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 22:18:07,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 22:18:07,348 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 22:18:07,353 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 22:18:07,353 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 22:18:07,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:07,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-16 22:18:07,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:07,367 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:07,368 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:07,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:07,371 INFO L85 PathProgramCache]: Analyzing trace with hash -528134526, now seen corresponding path program 1 times [2021-12-16 22:18:07,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:07,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528718865] [2021-12-16 22:18:07,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:07,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:07,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 22:18:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 22:18:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:07,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 22:18:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 22:18:07,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:07,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528718865] [2021-12-16 22:18:07,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528718865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 22:18:07,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 22:18:07,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 22:18:07,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043021289] [2021-12-16 22:18:07,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 22:18:07,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 22:18:07,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:07,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 22:18:07,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 22:18:07,620 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 22:18:07,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:07,638 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2021-12-16 22:18:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 22:18:07,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-12-16 22:18:07,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:07,645 INFO L225 Difference]: With dead ends: 52 [2021-12-16 22:18:07,646 INFO L226 Difference]: Without dead ends: 24 [2021-12-16 22:18:07,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 22:18:07,654 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:07,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:07,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-12-16 22:18:07,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-12-16 22:18:07,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:07,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-12-16 22:18:07,683 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 28 [2021-12-16 22:18:07,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:07,683 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-16 22:18:07,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 22:18:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2021-12-16 22:18:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-16 22:18:07,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:07,685 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:07,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 22:18:07,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:07,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:07,686 INFO L85 PathProgramCache]: Analyzing trace with hash -321958693, now seen corresponding path program 1 times [2021-12-16 22:18:07,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:07,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9643973] [2021-12-16 22:18:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:07,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:07,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 22:18:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:07,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 22:18:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:07,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 22:18:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-16 22:18:07,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:07,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9643973] [2021-12-16 22:18:07,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9643973] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:07,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806245296] [2021-12-16 22:18:07,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:07,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:07,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:07,789 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) [2021-12-16 22:18:07,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 22:18:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:07,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 22:18:07,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 22:18:07,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 22:18:07,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806245296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 22:18:07,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 22:18:07,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-16 22:18:07,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969762911] [2021-12-16 22:18:07,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 22:18:07,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 22:18:07,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:07,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 22:18:07,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 22:18:07,924 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 22:18:07,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:07,942 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-12-16 22:18:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 22:18:07,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-12-16 22:18:07,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:07,944 INFO L225 Difference]: With dead ends: 46 [2021-12-16 22:18:07,944 INFO L226 Difference]: Without dead ends: 26 [2021-12-16 22:18:07,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 22:18:07,946 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:07,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:07,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-12-16 22:18:07,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-12-16 22:18:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:07,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2021-12-16 22:18:07,953 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 28 [2021-12-16 22:18:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:07,954 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-12-16 22:18:07,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 22:18:07,954 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-12-16 22:18:07,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-16 22:18:07,955 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:07,955 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:07,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-16 22:18:08,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:08,169 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:08,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:08,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1777476163, now seen corresponding path program 1 times [2021-12-16 22:18:08,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:08,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142248807] [2021-12-16 22:18:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:08,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 22:18:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 22:18:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 22:18:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 22:18:08,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:08,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142248807] [2021-12-16 22:18:08,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142248807] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:08,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239332902] [2021-12-16 22:18:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:08,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:08,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:08,217 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) [2021-12-16 22:18:08,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 22:18:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 22:18:08,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:08,334 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 22:18:08,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 22:18:08,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239332902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 22:18:08,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 22:18:08,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-16 22:18:08,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115917292] [2021-12-16 22:18:08,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 22:18:08,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 22:18:08,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:08,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 22:18:08,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 22:18:08,337 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 22:18:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:08,345 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2021-12-16 22:18:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 22:18:08,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2021-12-16 22:18:08,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:08,346 INFO L225 Difference]: With dead ends: 48 [2021-12-16 22:18:08,346 INFO L226 Difference]: Without dead ends: 29 [2021-12-16 22:18:08,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 22:18:08,347 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:08,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 50 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:08,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-16 22:18:08,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2021-12-16 22:18:08,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:08,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-12-16 22:18:08,351 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 30 [2021-12-16 22:18:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:08,351 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-12-16 22:18:08,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 22:18:08,352 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-12-16 22:18:08,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-16 22:18:08,352 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:08,353 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:08,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-16 22:18:08,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-16 22:18:08,568 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:08,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:08,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1540631384, now seen corresponding path program 1 times [2021-12-16 22:18:08,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:08,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921286533] [2021-12-16 22:18:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:08,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 22:18:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 22:18:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-16 22:18:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 22:18:08,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:08,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921286533] [2021-12-16 22:18:08,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921286533] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:08,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762444478] [2021-12-16 22:18:08,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:08,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:08,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:08,656 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) [2021-12-16 22:18:08,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 22:18:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:08,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 22:18:08,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:08,757 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 22:18:08,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 22:18:08,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762444478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 22:18:08,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 22:18:08,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-12-16 22:18:08,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798619954] [2021-12-16 22:18:08,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 22:18:08,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 22:18:08,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:08,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 22:18:08,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-16 22:18:08,759 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 22:18:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:08,767 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2021-12-16 22:18:08,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 22:18:08,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2021-12-16 22:18:08,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:08,768 INFO L225 Difference]: With dead ends: 43 [2021-12-16 22:18:08,768 INFO L226 Difference]: Without dead ends: 28 [2021-12-16 22:18:08,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-16 22:18:08,769 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:08,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:08,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-12-16 22:18:08,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2021-12-16 22:18:08,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2021-12-16 22:18:08,773 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 42 [2021-12-16 22:18:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:08,774 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-12-16 22:18:08,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 22:18:08,774 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2021-12-16 22:18:08,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-16 22:18:08,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:08,775 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:08,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 22:18:08,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:08,993 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:08,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:08,994 INFO L85 PathProgramCache]: Analyzing trace with hash -180199466, now seen corresponding path program 1 times [2021-12-16 22:18:08,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:08,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10121419] [2021-12-16 22:18:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:08,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 22:18:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 22:18:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:09,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 22:18:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:09,058 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-16 22:18:09,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:09,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10121419] [2021-12-16 22:18:09,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10121419] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:09,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718485764] [2021-12-16 22:18:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:09,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:09,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:09,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:18:09,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 22:18:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:09,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 22:18:09,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-16 22:18:09,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:18:09,251 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-16 22:18:09,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718485764] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 22:18:09,251 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 22:18:09,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2021-12-16 22:18:09,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103699411] [2021-12-16 22:18:09,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 22:18:09,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 22:18:09,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:09,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 22:18:09,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-12-16 22:18:09,253 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-16 22:18:09,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:09,278 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2021-12-16 22:18:09,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 22:18:09,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2021-12-16 22:18:09,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:09,279 INFO L225 Difference]: With dead ends: 62 [2021-12-16 22:18:09,279 INFO L226 Difference]: Without dead ends: 40 [2021-12-16 22:18:09,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-12-16 22:18:09,280 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 15 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:09,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 70 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:09,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-12-16 22:18:09,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2021-12-16 22:18:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:09,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-12-16 22:18:09,285 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 44 [2021-12-16 22:18:09,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:09,287 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-12-16 22:18:09,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-16 22:18:09,287 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2021-12-16 22:18:09,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-16 22:18:09,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:09,291 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:09,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 22:18:09,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:09,507 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:09,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:09,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1875433, now seen corresponding path program 2 times [2021-12-16 22:18:09,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:09,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286840738] [2021-12-16 22:18:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:09,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:09,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 22:18:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:09,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 22:18:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:09,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 22:18:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:09,628 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-12-16 22:18:09,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:09,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286840738] [2021-12-16 22:18:09,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286840738] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:09,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238115781] [2021-12-16 22:18:09,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 22:18:09,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:09,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:09,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:18:09,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 22:18:09,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 22:18:09,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 22:18:09,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 22:18:09,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-12-16 22:18:09,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:18:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-12-16 22:18:09,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238115781] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 22:18:09,979 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 22:18:09,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2021-12-16 22:18:09,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391838157] [2021-12-16 22:18:09,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 22:18:09,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-16 22:18:09,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:09,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-16 22:18:09,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-12-16 22:18:09,981 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-16 22:18:10,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:10,035 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2021-12-16 22:18:10,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 22:18:10,035 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2021-12-16 22:18:10,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:10,036 INFO L225 Difference]: With dead ends: 78 [2021-12-16 22:18:10,036 INFO L226 Difference]: Without dead ends: 52 [2021-12-16 22:18:10,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-12-16 22:18:10,044 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:10,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 93 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:10,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-16 22:18:10,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2021-12-16 22:18:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.108695652173913) internal successors, (51), 46 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:10,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2021-12-16 22:18:10,063 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 62 [2021-12-16 22:18:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:10,063 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2021-12-16 22:18:10,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-16 22:18:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2021-12-16 22:18:10,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-16 22:18:10,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:10,064 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:10,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-16 22:18:10,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:10,265 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:10,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:10,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1341943393, now seen corresponding path program 3 times [2021-12-16 22:18:10,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:10,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683318043] [2021-12-16 22:18:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:10,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:10,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 22:18:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:10,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 22:18:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:10,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 22:18:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-12-16 22:18:10,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:10,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683318043] [2021-12-16 22:18:10,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683318043] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:10,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859477065] [2021-12-16 22:18:10,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 22:18:10,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:10,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:10,390 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:18:10,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 22:18:10,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-16 22:18:10,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 22:18:10,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 22:18:10,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-12-16 22:18:10,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:18:10,662 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-12-16 22:18:10,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859477065] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 22:18:10,663 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 22:18:10,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2021-12-16 22:18:10,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623682463] [2021-12-16 22:18:10,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 22:18:10,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 22:18:10,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 22:18:10,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-16 22:18:10,664 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-16 22:18:10,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:10,692 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2021-12-16 22:18:10,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 22:18:10,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2021-12-16 22:18:10,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:10,694 INFO L225 Difference]: With dead ends: 94 [2021-12-16 22:18:10,694 INFO L226 Difference]: Without dead ends: 67 [2021-12-16 22:18:10,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-16 22:18:10,696 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 40 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:10,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 58 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:10,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-12-16 22:18:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-12-16 22:18:10,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 62 states have internal predecessors, (71), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:10,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2021-12-16 22:18:10,700 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 76 [2021-12-16 22:18:10,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:10,700 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2021-12-16 22:18:10,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-16 22:18:10,701 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2021-12-16 22:18:10,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-16 22:18:10,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:10,702 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 10, 10, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:10,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-16 22:18:10,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:10,919 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:10,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:10,919 INFO L85 PathProgramCache]: Analyzing trace with hash -28042803, now seen corresponding path program 4 times [2021-12-16 22:18:10,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:10,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351748579] [2021-12-16 22:18:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:10,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 22:18:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 22:18:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 22:18:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:11,042 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-12-16 22:18:11,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:11,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351748579] [2021-12-16 22:18:11,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351748579] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:11,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588539267] [2021-12-16 22:18:11,043 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 22:18:11,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:11,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:11,044 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:18:11,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-16 22:18:11,135 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 22:18:11,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 22:18:11,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 22:18:11,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:11,312 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 316 proven. 66 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2021-12-16 22:18:11,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:18:11,502 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-12-16 22:18:11,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588539267] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 22:18:11,502 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 22:18:11,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2021-12-16 22:18:11,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69458205] [2021-12-16 22:18:11,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 22:18:11,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 22:18:11,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:11,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 22:18:11,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-16 22:18:11,504 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 22:18:11,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:11,535 INFO L93 Difference]: Finished difference Result 126 states and 155 transitions. [2021-12-16 22:18:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 22:18:11,536 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2021-12-16 22:18:11,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:11,537 INFO L225 Difference]: With dead ends: 126 [2021-12-16 22:18:11,537 INFO L226 Difference]: Without dead ends: 83 [2021-12-16 22:18:11,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-16 22:18:11,538 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 62 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:11,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 66 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:11,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-12-16 22:18:11,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-12-16 22:18:11,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.1666666666666667) internal successors, (91), 78 states have internal predecessors, (91), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:11,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 97 transitions. [2021-12-16 22:18:11,542 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 97 transitions. Word has length 124 [2021-12-16 22:18:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:11,543 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 97 transitions. [2021-12-16 22:18:11,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 22:18:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 97 transitions. [2021-12-16 22:18:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-16 22:18:11,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:11,558 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:11,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-16 22:18:11,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:11,773 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:11,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:11,774 INFO L85 PathProgramCache]: Analyzing trace with hash -281100999, now seen corresponding path program 5 times [2021-12-16 22:18:11,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:11,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280209549] [2021-12-16 22:18:11,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:11,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 22:18:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 22:18:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:11,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-16 22:18:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:11,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2021-12-16 22:18:11,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:11,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280209549] [2021-12-16 22:18:11,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280209549] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:11,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058079543] [2021-12-16 22:18:11,865 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-16 22:18:11,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:11,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:11,880 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:18:11,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-16 22:18:12,120 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2021-12-16 22:18:12,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 22:18:12,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 22:18:12,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:12,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 850 proven. 4 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2021-12-16 22:18:12,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:18:12,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2021-12-16 22:18:12,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058079543] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 22:18:12,538 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 22:18:12,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-12-16 22:18:12,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16973475] [2021-12-16 22:18:12,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 22:18:12,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 22:18:12,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:12,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 22:18:12,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-12-16 22:18:12,539 INFO L87 Difference]: Start difference. First operand 83 states and 97 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 22:18:12,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:12,559 INFO L93 Difference]: Finished difference Result 142 states and 170 transitions. [2021-12-16 22:18:12,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 22:18:12,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 172 [2021-12-16 22:18:12,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:12,560 INFO L225 Difference]: With dead ends: 142 [2021-12-16 22:18:12,560 INFO L226 Difference]: Without dead ends: 91 [2021-12-16 22:18:12,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-12-16 22:18:12,561 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:12,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 51 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:12,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-12-16 22:18:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-12-16 22:18:12,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 86 states have (on average 1.1511627906976745) internal successors, (99), 86 states have internal predecessors, (99), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:12,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2021-12-16 22:18:12,566 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 172 [2021-12-16 22:18:12,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:12,566 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2021-12-16 22:18:12,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 22:18:12,567 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2021-12-16 22:18:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-16 22:18:12,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:12,568 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:12,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-16 22:18:12,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-16 22:18:12,785 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:12,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1450203185, now seen corresponding path program 6 times [2021-12-16 22:18:12,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:12,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875116337] [2021-12-16 22:18:12,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:12,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:12,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 22:18:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:12,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 22:18:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:12,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 22:18:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2021-12-16 22:18:12,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:12,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875116337] [2021-12-16 22:18:12,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875116337] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:12,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605105942] [2021-12-16 22:18:12,884 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-16 22:18:12,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:12,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:12,900 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:18:12,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-16 22:18:13,299 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2021-12-16 22:18:13,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 22:18:13,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 22:18:13,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 850 proven. 36 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2021-12-16 22:18:13,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:18:13,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2021-12-16 22:18:13,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605105942] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 22:18:13,795 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 22:18:13,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2021-12-16 22:18:13,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76842505] [2021-12-16 22:18:13,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 22:18:13,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 22:18:13,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:18:13,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 22:18:13,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-16 22:18:13,797 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 22:18:13,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:18:13,819 INFO L93 Difference]: Finished difference Result 148 states and 175 transitions. [2021-12-16 22:18:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 22:18:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 180 [2021-12-16 22:18:13,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:18:13,820 INFO L225 Difference]: With dead ends: 148 [2021-12-16 22:18:13,820 INFO L226 Difference]: Without dead ends: 97 [2021-12-16 22:18:13,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 362 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-16 22:18:13,821 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 22:18:13,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 99 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 22:18:13,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-12-16 22:18:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-12-16 22:18:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 92 states have (on average 1.141304347826087) internal successors, (105), 92 states have internal predecessors, (105), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 22:18:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2021-12-16 22:18:13,826 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 180 [2021-12-16 22:18:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:18:13,827 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2021-12-16 22:18:13,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 22:18:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2021-12-16 22:18:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-16 22:18:13,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:18:13,828 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 9, 9, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:18:13,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-16 22:18:14,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-16 22:18:14,046 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:18:14,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:18:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1435992661, now seen corresponding path program 7 times [2021-12-16 22:18:14,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:18:14,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209560234] [2021-12-16 22:18:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:18:14,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:18:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:14,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 22:18:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:14,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 22:18:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:14,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 22:18:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:14,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 38 proven. 1214 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2021-12-16 22:18:14,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:18:14,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209560234] [2021-12-16 22:18:14,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209560234] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:18:14,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736018171] [2021-12-16 22:18:14,620 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-16 22:18:14,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:18:14,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:18:14,621 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:18:14,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-16 22:18:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:18:14,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 168 conjunts are in the unsatisfiable core [2021-12-16 22:18:14,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:18:14,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-16 22:18:17,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:17,489 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:17,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 146 treesize of output 116 [2021-12-16 22:18:18,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:18:18,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,760 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:18,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 141 treesize of output 118 [2021-12-16 22:18:18,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:18,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,012 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:19,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 108 [2021-12-16 22:18:19,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:18:19,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,181 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:19,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 108 [2021-12-16 22:18:19,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:18:19,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,414 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:19,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 98 [2021-12-16 22:18:19,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:18:19,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,631 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:19,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 86 [2021-12-16 22:18:19,831 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:18:19,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:19,839 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:19,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 74 [2021-12-16 22:18:20,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,031 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:18:20,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,035 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:20,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 62 [2021-12-16 22:18:20,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:18:20,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,211 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:20,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 50 [2021-12-16 22:18:20,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,377 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:20,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 30 [2021-12-16 22:18:20,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:18:20,471 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:18:20,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2021-12-16 22:18:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 8 proven. 1827 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2021-12-16 22:18:21,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:19:17,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736018171] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:19:17,127 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-16 22:19:17,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 83] total 93 [2021-12-16 22:19:17,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863138713] [2021-12-16 22:19:17,128 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-16 22:19:17,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2021-12-16 22:19:17,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:19:17,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-12-16 22:19:17,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=625, Invalid=15359, Unknown=18, NotChecked=0, Total=16002 [2021-12-16 22:19:17,133 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 93 states, 91 states have (on average 1.945054945054945) internal successors, (177), 90 states have internal predecessors, (177), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-12-16 22:19:41,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:19:41,996 INFO L93 Difference]: Finished difference Result 694 states and 844 transitions. [2021-12-16 22:19:42,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 309 states. [2021-12-16 22:19:42,004 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 91 states have (on average 1.945054945054945) internal successors, (177), 90 states have internal predecessors, (177), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 186 [2021-12-16 22:19:42,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:19:42,008 INFO L225 Difference]: With dead ends: 694 [2021-12-16 22:19:42,008 INFO L226 Difference]: Without dead ends: 601 [2021-12-16 22:19:42,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 194 SyntacticMatches, 13 SemanticMatches, 359 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46844 ImplicationChecksByTransitivity, 79.7s TimeCoverageRelationStatistics Valid=3460, Invalid=126482, Unknown=18, NotChecked=0, Total=129960 [2021-12-16 22:19:42,039 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 229 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 6524 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 15129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 6524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8518 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-16 22:19:42,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1818 Invalid, 15129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 6524 Invalid, 0 Unknown, 8518 Unchecked, 3.9s Time] [2021-12-16 22:19:42,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-12-16 22:19:42,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 441. [2021-12-16 22:19:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 426 states have (on average 1.2112676056338028) internal successors, (516), 430 states have internal predecessors, (516), 7 states have call successors, (7), 3 states have call predecessors, (7), 7 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2021-12-16 22:19:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 545 transitions. [2021-12-16 22:19:42,094 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 545 transitions. Word has length 186 [2021-12-16 22:19:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:19:42,095 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 545 transitions. [2021-12-16 22:19:42,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 91 states have (on average 1.945054945054945) internal successors, (177), 90 states have internal predecessors, (177), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-12-16 22:19:42,095 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 545 transitions. [2021-12-16 22:19:42,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-16 22:19:42,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:19:42,108 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 28, 10, 10, 9, 9, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:19:42,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-16 22:19:42,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-16 22:19:42,322 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:19:42,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:19:42,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1427363051, now seen corresponding path program 1 times [2021-12-16 22:19:42,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:19:42,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968326277] [2021-12-16 22:19:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:19:42,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:19:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:19:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 22:19:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:19:45,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 22:19:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:19:46,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 22:19:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:19:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 3 proven. 1987 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-16 22:19:47,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:19:47,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968326277] [2021-12-16 22:19:47,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968326277] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:19:47,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414612691] [2021-12-16 22:19:47,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:19:47,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:19:47,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:19:47,599 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:19:47,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-16 22:19:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:19:47,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 283 conjunts are in the unsatisfiable core [2021-12-16 22:19:47,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:19:47,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-16 22:19:55,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:19:55,112 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:19:55,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 186 treesize of output 130 [2021-12-16 22:20:06,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,513 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:20:06,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:06,538 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:06,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 172 treesize of output 131 [2021-12-16 22:20:07,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,169 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:07,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 121 [2021-12-16 22:20:07,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,752 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:20:07,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:07,770 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:07,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 121 [2021-12-16 22:20:08,338 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:20:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,353 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:08,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 146 treesize of output 109 [2021-12-16 22:20:08,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,904 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:20:08,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:08,913 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:08,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 131 treesize of output 97 [2021-12-16 22:20:09,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:20:09,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,379 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:09,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 85 [2021-12-16 22:20:09,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:20:09,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:09,849 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:09,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 73 [2021-12-16 22:20:10,338 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:20:10,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:10,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:10,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:10,342 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:10,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 61 [2021-12-16 22:20:10,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:10,779 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:10,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 38 [2021-12-16 22:20:11,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:20:11,063 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:11,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 38 [2021-12-16 22:20:13,866 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:20:13,866 INFO L388 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 89 treesize of output 61 [2021-12-16 22:20:14,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 1 proven. 2022 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 22:20:14,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:21:01,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414612691] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:21:01,591 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-16 22:21:01,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 130] total 209 [2021-12-16 22:21:01,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988333902] [2021-12-16 22:21:01,591 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-16 22:21:01,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 209 states [2021-12-16 22:21:01,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:21:01,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2021-12-16 22:21:01,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=56588, Unknown=27, NotChecked=0, Total=57840 [2021-12-16 22:21:01,595 INFO L87 Difference]: Start difference. First operand 441 states and 545 transitions. Second operand has 209 states, 207 states have (on average 1.4685990338164252) internal successors, (304), 200 states have internal predecessors, (304), 4 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-16 22:21:12,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:21:12,301 INFO L93 Difference]: Finished difference Result 946 states and 1179 transitions. [2021-12-16 22:21:12,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2021-12-16 22:21:12,302 INFO L78 Accepts]: Start accepts. Automaton has has 209 states, 207 states have (on average 1.4685990338164252) internal successors, (304), 200 states have internal predecessors, (304), 4 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 186 [2021-12-16 22:21:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:21:12,306 INFO L225 Difference]: With dead ends: 946 [2021-12-16 22:21:12,306 INFO L226 Difference]: Without dead ends: 901 [2021-12-16 22:21:12,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 125 SyntacticMatches, 10 SemanticMatches, 315 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36470 ImplicationChecksByTransitivity, 78.4s TimeCoverageRelationStatistics Valid=1958, Invalid=98187, Unknown=27, NotChecked=0, Total=100172 [2021-12-16 22:21:12,313 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 28 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 3989 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 6907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2901 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-16 22:21:12,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 1714 Invalid, 6907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3989 Invalid, 0 Unknown, 2901 Unchecked, 2.5s Time] [2021-12-16 22:21:12,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2021-12-16 22:21:12,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 803. [2021-12-16 22:21:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 778 states have (on average 1.2172236503856042) internal successors, (947), 787 states have internal predecessors, (947), 10 states have call successors, (10), 6 states have call predecessors, (10), 14 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) [2021-12-16 22:21:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1006 transitions. [2021-12-16 22:21:12,362 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1006 transitions. Word has length 186 [2021-12-16 22:21:12,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:21:12,362 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 1006 transitions. [2021-12-16 22:21:12,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 209 states, 207 states have (on average 1.4685990338164252) internal successors, (304), 200 states have internal predecessors, (304), 4 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-16 22:21:12,363 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1006 transitions. [2021-12-16 22:21:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-16 22:21:12,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:21:12,368 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 28, 10, 10, 9, 9, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:21:12,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-16 22:21:12,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-16 22:21:12,585 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:21:12,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:21:12,585 INFO L85 PathProgramCache]: Analyzing trace with hash 809272811, now seen corresponding path program 2 times [2021-12-16 22:21:12,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:21:12,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921177768] [2021-12-16 22:21:12,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:21:12,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:21:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:21:13,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 22:21:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:21:13,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 22:21:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:21:13,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 22:21:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:21:15,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 454 proven. 1297 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-12-16 22:21:15,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:21:15,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921177768] [2021-12-16 22:21:15,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921177768] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:21:15,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376847008] [2021-12-16 22:21:15,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 22:21:15,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:21:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:21:15,246 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:21:15,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-16 22:21:15,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 22:21:15,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 22:21:15,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 168 conjunts are in the unsatisfiable core [2021-12-16 22:21:15,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:21:15,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-16 22:21:20,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:20,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:20,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,372 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:21:20,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 190 treesize of output 156 [2021-12-16 22:21:20,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:20,865 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:21:20,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 174 treesize of output 131 [2021-12-16 22:21:21,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:21,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,304 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:21:21,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 174 treesize of output 131 [2021-12-16 22:21:21,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:21,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:21,754 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:21:21,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 155 treesize of output 118 [2021-12-16 22:21:22,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,183 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:22,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,192 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:21:22,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 134 treesize of output 103 [2021-12-16 22:21:22,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:22,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,578 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:21:22,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 113 treesize of output 88 [2021-12-16 22:21:22,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,953 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:22,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:22,958 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:21:22,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 73 [2021-12-16 22:21:23,281 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:23,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:23,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:23,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:23,288 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:21:23,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 58 [2021-12-16 22:21:23,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:23,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:23,594 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:23,595 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:23,596 INFO L354 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2021-12-16 22:21:23,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 53 [2021-12-16 22:21:23,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-16 22:21:23,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 22:21:23,782 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 22:21:23,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 44 [2021-12-16 22:21:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 852 proven. 982 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-16 22:21:26,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:22:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 1016 proven. 717 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-12-16 22:22:50,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376847008] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 22:22:50,022 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 22:22:50,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 83, 73] total 206 [2021-12-16 22:22:50,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511433867] [2021-12-16 22:22:50,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 22:22:50,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 206 states [2021-12-16 22:22:50,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:22:50,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 206 interpolants. [2021-12-16 22:22:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1534, Invalid=40673, Unknown=23, NotChecked=0, Total=42230 [2021-12-16 22:22:50,027 INFO L87 Difference]: Start difference. First operand 803 states and 1006 transitions. Second operand has 206 states, 203 states have (on average 1.6699507389162562) internal successors, (339), 202 states have internal predecessors, (339), 6 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-12-16 22:26:57,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 22:26:57,866 INFO L93 Difference]: Finished difference Result 2102 states and 2904 transitions. [2021-12-16 22:26:57,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 463 states. [2021-12-16 22:26:57,867 INFO L78 Accepts]: Start accepts. Automaton has has 206 states, 203 states have (on average 1.6699507389162562) internal successors, (339), 202 states have internal predecessors, (339), 6 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) Word has length 186 [2021-12-16 22:26:57,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 22:26:57,877 INFO L225 Difference]: With dead ends: 2102 [2021-12-16 22:26:57,877 INFO L226 Difference]: Without dead ends: 2074 [2021-12-16 22:26:57,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 889 GetRequests, 285 SyntacticMatches, 8 SemanticMatches, 596 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118884 ImplicationChecksByTransitivity, 335.2s TimeCoverageRelationStatistics Valid=10559, Invalid=346373, Unknown=74, NotChecked=0, Total=357006 [2021-12-16 22:26:57,895 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 430 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 5836 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3953 SdHoareTripleChecker+Invalid, 15632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 5836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9723 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-16 22:26:57,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 3953 Invalid, 15632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 5836 Invalid, 0 Unknown, 9723 Unchecked, 2.7s Time] [2021-12-16 22:26:57,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2021-12-16 22:26:57,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1598. [2021-12-16 22:26:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1551 states have (on average 1.2282398452611218) internal successors, (1905), 1569 states have internal predecessors, (1905), 20 states have call successors, (20), 9 states have call predecessors, (20), 26 states have return successors, (191), 19 states have call predecessors, (191), 20 states have call successors, (191) [2021-12-16 22:26:57,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2116 transitions. [2021-12-16 22:26:57,972 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2116 transitions. Word has length 186 [2021-12-16 22:26:57,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 22:26:57,972 INFO L470 AbstractCegarLoop]: Abstraction has 1598 states and 2116 transitions. [2021-12-16 22:26:57,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 206 states, 203 states have (on average 1.6699507389162562) internal successors, (339), 202 states have internal predecessors, (339), 6 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-12-16 22:26:57,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2116 transitions. [2021-12-16 22:26:57,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-16 22:26:57,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 22:26:57,985 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 27, 10, 10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 22:26:58,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-16 22:26:58,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-16 22:26:58,212 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 22:26:58,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 22:26:58,212 INFO L85 PathProgramCache]: Analyzing trace with hash 416245801, now seen corresponding path program 3 times [2021-12-16 22:26:58,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 22:26:58,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149098057] [2021-12-16 22:26:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 22:26:58,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 22:26:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:26:58,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 22:26:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:26:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 22:26:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:26:59,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 22:26:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 22:27:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 853 proven. 950 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-12-16 22:27:00,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 22:27:00,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149098057] [2021-12-16 22:27:00,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149098057] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 22:27:00,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339821477] [2021-12-16 22:27:00,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 22:27:00,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 22:27:00,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 22:27:00,007 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 22:27:00,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-16 22:27:00,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-12-16 22:27:00,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 22:27:00,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-16 22:27:00,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 22:27:01,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-16 22:27:01,616 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-12-16 22:27:01,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-12-16 22:27:01,687 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-12-16 22:27:01,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-12-16 22:27:01,755 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-12-16 22:27:01,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-12-16 22:27:01,826 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-12-16 22:27:01,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-12-16 22:27:01,894 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-12-16 22:27:01,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-12-16 22:27:01,919 INFO L354 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2021-12-16 22:27:01,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 47 [2021-12-16 22:27:02,051 INFO L354 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2021-12-16 22:27:02,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 58 [2021-12-16 22:27:02,220 INFO L354 Elim1Store]: treesize reduction 129, result has 25.0 percent of original size [2021-12-16 22:27:02,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 78 [2021-12-16 22:27:02,481 INFO L354 Elim1Store]: treesize reduction 274, result has 17.7 percent of original size [2021-12-16 22:27:02,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 86 treesize of output 102 [2021-12-16 22:27:13,774 INFO L354 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2021-12-16 22:27:13,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 36 [2021-12-16 22:28:33,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 1199 proven. 329 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-12-16 22:28:33,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 22:28:43,601 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~2#1| Int)) (or (forall ((v_ArrVal_826 Int) (v_ArrVal_824 Int) (v_ArrVal_820 Int)) (let ((.cse1 (* |ULTIMATE.start_main_~i~2#1| 4))) (let ((.cse4 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1) v_ArrVal_820))) (let ((.cse0 (store .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 8) v_ArrVal_824)) (.cse3 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 12))) (or (< v_ArrVal_826 (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 16))) (let ((.cse2 (store .cse0 .cse3 v_ArrVal_826))) (<= (+ (select .cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (< (select .cse4 .cse3) v_ArrVal_824)))))) (<= 6 |ULTIMATE.start_main_~i~2#1|) (< |ULTIMATE.start_main_~i~2#1| 5))) is different from false [2021-12-16 22:28:44,930 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_817 Int) (v_ArrVal_826 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (v_ArrVal_820 Int)) (let ((.cse3 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse4 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |c_ULTIMATE.start_main_~i~2#1| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3) v_ArrVal_820))) (let ((.cse1 (store .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3 8) v_ArrVal_824)) (.cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3 12))) (or (let ((.cse0 (store .cse1 .cse2 v_ArrVal_826))) (<= (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (< v_ArrVal_826 (select .cse1 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3 16))) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (< (select .cse4 .cse2) v_ArrVal_824)))))) is different from false [2021-12-16 22:28:47,067 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~2#1_102| Int)) (or (< (+ |c_ULTIMATE.start_main_~i~2#1| 1) |v_ULTIMATE.start_main_~i~2#1_102|) (forall ((v_ArrVal_817 Int) (v_ArrVal_826 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (v_ArrVal_820 Int)) (let ((.cse4 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse3 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4) v_ArrVal_820))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 12)) (.cse1 (store .cse3 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 8) v_ArrVal_824))) (or (let ((.cse0 (store .cse1 .cse2 v_ArrVal_826))) (<= (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (< (select .cse3 .cse2) v_ArrVal_824) (< v_ArrVal_826 (select .cse1 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 16))) (< |v_ULTIMATE.start_main_~i~2#1_101| 5)))))))) is different from false [2021-12-16 22:28:48,570 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_817 Int) (v_ArrVal_815 Int) (v_ArrVal_826 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (|v_ULTIMATE.start_main_~i~2#1_102| Int) (v_ArrVal_820 Int)) (let ((.cse4 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse3 (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |c_ULTIMATE.start_main_~i~2#1| 4)) v_ArrVal_815) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4) v_ArrVal_820))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 12)) (.cse1 (store .cse3 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 8) v_ArrVal_824))) (or (< (+ |c_ULTIMATE.start_main_~i~2#1| 1) |v_ULTIMATE.start_main_~i~2#1_102|) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (let ((.cse0 (store .cse1 .cse2 v_ArrVal_826))) (<= (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (< (select .cse3 .cse2) v_ArrVal_824) (< v_ArrVal_826 (select .cse1 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 16)))))))) is different from false [2021-12-16 22:28:50,979 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~2#1_103| Int)) (or (< (+ |c_ULTIMATE.start_main_~i~2#1| 1) |v_ULTIMATE.start_main_~i~2#1_103|) (forall ((v_ArrVal_817 Int) (v_ArrVal_815 Int) (v_ArrVal_826 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (|v_ULTIMATE.start_main_~i~2#1_102| Int) (v_ArrVal_820 Int)) (let ((.cse1 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse2 (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_103| 4)) v_ArrVal_815) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1) v_ArrVal_820))) (let ((.cse0 (store .cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 8) v_ArrVal_824)) (.cse3 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 12))) (or (< v_ArrVal_826 (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 16))) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (< (select .cse2 .cse3) v_ArrVal_824) (let ((.cse4 (store .cse0 .cse3 v_ArrVal_826))) (<= (+ (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (< (+ |v_ULTIMATE.start_main_~i~2#1_103| 1) |v_ULTIMATE.start_main_~i~2#1_102|)))))))) is different from false [2021-12-16 22:28:53,025 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_817 Int) (v_ArrVal_815 Int) (v_ArrVal_826 Int) (v_ArrVal_813 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (|v_ULTIMATE.start_main_~i~2#1_103| Int) (|v_ULTIMATE.start_main_~i~2#1_102| Int) (v_ArrVal_820 Int)) (let ((.cse4 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse0 (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |c_ULTIMATE.start_main_~i~2#1| 4)) v_ArrVal_813) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_103| 4)) v_ArrVal_815) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4) v_ArrVal_820))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 12)) (.cse3 (store .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 8) v_ArrVal_824))) (or (< (select .cse0 .cse1) v_ArrVal_824) (< (+ |c_ULTIMATE.start_main_~i~2#1| 1) |v_ULTIMATE.start_main_~i~2#1_103|) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (let ((.cse2 (store .cse3 .cse1 v_ArrVal_826))) (<= (+ (select .cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (< v_ArrVal_826 (select .cse3 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 16))) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (< (+ |v_ULTIMATE.start_main_~i~2#1_103| 1) |v_ULTIMATE.start_main_~i~2#1_102|)))))) is different from false [2021-12-16 22:28:55,572 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~2#1_104| Int)) (or (forall ((v_ArrVal_817 Int) (v_ArrVal_815 Int) (v_ArrVal_826 Int) (v_ArrVal_813 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (|v_ULTIMATE.start_main_~i~2#1_103| Int) (|v_ULTIMATE.start_main_~i~2#1_102| Int) (v_ArrVal_820 Int)) (let ((.cse4 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse3 (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~2#1_104| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_813) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_103| 4)) v_ArrVal_815) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4) v_ArrVal_820))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 12)) (.cse1 (store .cse3 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 8) v_ArrVal_824))) (or (let ((.cse0 (store .cse1 .cse2 v_ArrVal_826))) (<= (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (< (select .cse3 .cse2) v_ArrVal_824) (< v_ArrVal_826 (select .cse1 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse4 16))) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (< (+ |v_ULTIMATE.start_main_~i~2#1_104| 1) |v_ULTIMATE.start_main_~i~2#1_103|) (< (+ |v_ULTIMATE.start_main_~i~2#1_103| 1) |v_ULTIMATE.start_main_~i~2#1_102|)))))) (< (+ |c_ULTIMATE.start_main_~i~2#1| 1) |v_ULTIMATE.start_main_~i~2#1_104|))) is different from false [2021-12-16 22:28:57,965 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~2#1_104| Int) (v_ArrVal_817 Int) (v_ArrVal_815 Int) (v_ArrVal_826 Int) (v_ArrVal_813 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (v_ArrVal_811 Int) (|v_ULTIMATE.start_main_~i~2#1_103| Int) (|v_ULTIMATE.start_main_~i~2#1_102| Int) (v_ArrVal_820 Int)) (let ((.cse3 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse0 (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |c_ULTIMATE.start_main_~i~2#1| 4)) v_ArrVal_811) (+ (* |v_ULTIMATE.start_main_~i~2#1_104| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_813) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_103| 4)) v_ArrVal_815) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3) v_ArrVal_820))) (let ((.cse2 (store .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3 8) v_ArrVal_824)) (.cse1 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3 12))) (or (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (< (select .cse0 .cse1) v_ArrVal_824) (< (+ |c_ULTIMATE.start_main_~i~2#1| 1) |v_ULTIMATE.start_main_~i~2#1_104|) (< v_ArrVal_826 (select .cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3 16))) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (let ((.cse4 (store .cse2 .cse1 v_ArrVal_826))) (<= (+ (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (< (+ |v_ULTIMATE.start_main_~i~2#1_104| 1) |v_ULTIMATE.start_main_~i~2#1_103|) (< (+ |v_ULTIMATE.start_main_~i~2#1_103| 1) |v_ULTIMATE.start_main_~i~2#1_102|)))))) is different from false [2021-12-16 22:29:00,850 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~2#1_105| Int)) (or (< (+ |c_ULTIMATE.start_main_~i~2#1| 1) |v_ULTIMATE.start_main_~i~2#1_105|) (forall ((|v_ULTIMATE.start_main_~i~2#1_104| Int) (v_ArrVal_817 Int) (v_ArrVal_815 Int) (v_ArrVal_826 Int) (v_ArrVal_813 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (v_ArrVal_811 Int) (|v_ULTIMATE.start_main_~i~2#1_103| Int) (|v_ULTIMATE.start_main_~i~2#1_102| Int) (v_ArrVal_820 Int)) (let ((.cse3 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse0 (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~2#1_105| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_811) (+ (* |v_ULTIMATE.start_main_~i~2#1_104| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_813) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_103| 4)) v_ArrVal_815) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3) v_ArrVal_820))) (let ((.cse2 (store .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3 8) v_ArrVal_824)) (.cse1 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3 12))) (or (< (+ |v_ULTIMATE.start_main_~i~2#1_105| 1) |v_ULTIMATE.start_main_~i~2#1_104|) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (< (select .cse0 .cse1) v_ArrVal_824) (< v_ArrVal_826 (select .cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse3 16))) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (let ((.cse4 (store .cse2 .cse1 v_ArrVal_826))) (<= (+ (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (< (+ |v_ULTIMATE.start_main_~i~2#1_104| 1) |v_ULTIMATE.start_main_~i~2#1_103|) (< (+ |v_ULTIMATE.start_main_~i~2#1_103| 1) |v_ULTIMATE.start_main_~i~2#1_102|)))))))) is different from false [2021-12-16 22:29:03,370 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~2#1_105| Int) (|v_ULTIMATE.start_main_~i~2#1_104| Int) (v_ArrVal_817 Int) (v_ArrVal_815 Int) (v_ArrVal_826 Int) (v_ArrVal_813 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int) (|v_ULTIMATE.start_main_~i~2#1_103| Int) (|v_ULTIMATE.start_main_~i~2#1_102| Int) (v_ArrVal_820 Int)) (let ((.cse1 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse2 (store (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |c_ULTIMATE.start_main_~i~2#1| 4)) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~2#1_105| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_811) (+ (* |v_ULTIMATE.start_main_~i~2#1_104| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_813) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_103| 4)) v_ArrVal_815) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1) v_ArrVal_820))) (let ((.cse0 (store .cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 8) v_ArrVal_824)) (.cse3 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 12))) (or (< (+ |v_ULTIMATE.start_main_~i~2#1_105| 1) |v_ULTIMATE.start_main_~i~2#1_104|) (< v_ArrVal_826 (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 16))) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (< (+ |c_ULTIMATE.start_main_~i~2#1| 1) |v_ULTIMATE.start_main_~i~2#1_105|) (< (select .cse2 .cse3) v_ArrVal_824) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (let ((.cse4 (store .cse0 .cse3 v_ArrVal_826))) (<= (+ (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (< (+ |v_ULTIMATE.start_main_~i~2#1_104| 1) |v_ULTIMATE.start_main_~i~2#1_103|) (< (+ |v_ULTIMATE.start_main_~i~2#1_103| 1) |v_ULTIMATE.start_main_~i~2#1_102|)))))) is different from false [2021-12-16 22:29:06,318 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~2#1_106| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~2#1_105| Int) (|v_ULTIMATE.start_main_~i~2#1_104| Int) (v_ArrVal_817 Int) (v_ArrVal_815 Int) (v_ArrVal_826 Int) (v_ArrVal_813 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int) (|v_ULTIMATE.start_main_~i~2#1_103| Int) (|v_ULTIMATE.start_main_~i~2#1_102| Int) (v_ArrVal_820 Int)) (let ((.cse1 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse2 (store (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~2#1_106| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~2#1_105| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_811) (+ (* |v_ULTIMATE.start_main_~i~2#1_104| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_813) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_103| 4)) v_ArrVal_815) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1) v_ArrVal_820))) (let ((.cse0 (store .cse2 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 8) v_ArrVal_824)) (.cse3 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 12))) (or (< (+ |v_ULTIMATE.start_main_~i~2#1_105| 1) |v_ULTIMATE.start_main_~i~2#1_104|) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (< (+ |v_ULTIMATE.start_main_~i~2#1_106| 1) |v_ULTIMATE.start_main_~i~2#1_105|) (< v_ArrVal_826 (select .cse0 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| .cse1 16))) (< (select .cse2 .cse3) v_ArrVal_824) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (let ((.cse4 (store .cse0 .cse3 v_ArrVal_826))) (<= (+ (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 28)) 1) (select .cse4 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 32)))) (< (+ |v_ULTIMATE.start_main_~i~2#1_104| 1) |v_ULTIMATE.start_main_~i~2#1_103|) (< (+ |v_ULTIMATE.start_main_~i~2#1_103| 1) |v_ULTIMATE.start_main_~i~2#1_102|)))))) (< 0 |v_ULTIMATE.start_main_~i~2#1_106|))) is different from false [2021-12-16 22:29:08,972 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~2#1_105| Int) (|v_ULTIMATE.start_main_~i~2#1_104| Int) (|v_ULTIMATE.start_main_~i~2#1_106| Int) (v_ArrVal_817 Int) (v_ArrVal_815 Int) (v_ArrVal_826 Int) (v_ArrVal_813 Int) (v_ArrVal_824 Int) (|v_ULTIMATE.start_main_~i~2#1_101| Int) (v_ArrVal_811 Int) (v_ArrVal_810 Int) (|v_ULTIMATE.start_main_~i~2#1_103| Int) (|v_ULTIMATE.start_main_~i~2#1_102| Int) (v_ArrVal_820 Int)) (let ((.cse4 (* |v_ULTIMATE.start_main_~i~2#1_101| 4))) (let ((.cse3 (store (store (store (store (store (store (select |c_#memory_int| |c_max_#in~x.base|) (+ (* |v_ULTIMATE.start_main_~i~2#1_106| 4) |c_max_#in~x.offset|) v_ArrVal_810) (+ (* |v_ULTIMATE.start_main_~i~2#1_105| 4) |c_max_#in~x.offset|) v_ArrVal_811) (+ (* |v_ULTIMATE.start_main_~i~2#1_104| 4) |c_max_#in~x.offset|) v_ArrVal_813) (+ (* |v_ULTIMATE.start_main_~i~2#1_103| 4) |c_max_#in~x.offset|) v_ArrVal_815) (+ |c_max_#in~x.offset| (* |v_ULTIMATE.start_main_~i~2#1_102| 4)) v_ArrVal_817) (+ .cse4 |c_max_#in~x.offset|) v_ArrVal_820))) (let ((.cse2 (+ .cse4 |c_max_#in~x.offset| 12)) (.cse1 (store .cse3 (+ .cse4 |c_max_#in~x.offset| 8) v_ArrVal_824))) (or (< (+ |v_ULTIMATE.start_main_~i~2#1_105| 1) |v_ULTIMATE.start_main_~i~2#1_104|) (<= 6 |v_ULTIMATE.start_main_~i~2#1_101|) (< (+ |v_ULTIMATE.start_main_~i~2#1_106| 1) |v_ULTIMATE.start_main_~i~2#1_105|) (let ((.cse0 (store .cse1 .cse2 v_ArrVal_826))) (<= (+ (select .cse0 (+ |c_max_#in~x.offset| 28)) 1) (select .cse0 (+ |c_max_#in~x.offset| 32)))) (< 0 |v_ULTIMATE.start_main_~i~2#1_106|) (< |v_ULTIMATE.start_main_~i~2#1_101| 5) (< (select .cse3 .cse2) v_ArrVal_824) (< v_ArrVal_826 (select .cse1 (+ .cse4 |c_max_#in~x.offset| 16))) (< (+ |v_ULTIMATE.start_main_~i~2#1_104| 1) |v_ULTIMATE.start_main_~i~2#1_103|) (< (+ |v_ULTIMATE.start_main_~i~2#1_103| 1) |v_ULTIMATE.start_main_~i~2#1_102|)))))) is different from false [2021-12-16 22:30:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 848 proven. 693 refuted. 0 times theorem prover too weak. 413 trivial. 72 not checked. [2021-12-16 22:30:05,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339821477] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 22:30:05,283 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 22:30:05,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 39, 44] total 124 [2021-12-16 22:30:05,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218916313] [2021-12-16 22:30:05,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 22:30:05,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2021-12-16 22:30:05,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 22:30:05,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2021-12-16 22:30:05,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1153, Invalid=11267, Unknown=60, NotChecked=2772, Total=15252 [2021-12-16 22:30:05,287 INFO L87 Difference]: Start difference. First operand 1598 states and 2116 transitions. Second operand has 124 states, 124 states have (on average 2.0) internal successors, (248), 121 states have internal predecessors, (248), 4 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Killed by 15