./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/sqm.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e8d55036 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/sqm.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 950fd5ff5cc9d2c5e3d846192e43f4963ef3abd0ec7056eb5d764989d48b2064 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 19:15:33,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 19:15:33,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 19:15:33,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 19:15:33,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 19:15:33,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 19:15:33,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 19:15:33,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 19:15:33,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 19:15:33,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 19:15:33,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 19:15:33,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 19:15:33,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 19:15:33,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 19:15:33,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 19:15:33,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 19:15:33,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 19:15:33,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 19:15:33,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 19:15:33,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 19:15:33,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 19:15:33,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 19:15:33,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 19:15:33,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 19:15:33,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 19:15:33,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 19:15:33,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 19:15:33,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 19:15:33,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 19:15:33,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 19:15:33,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 19:15:33,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 19:15:33,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 19:15:33,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 19:15:33,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 19:15:33,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 19:15:33,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 19:15:33,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 19:15:33,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 19:15:33,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 19:15:33,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 19:15:33,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 19:15:33,148 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 19:15:33,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 19:15:33,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 19:15:33,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 19:15:33,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 19:15:33,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 19:15:33,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 19:15:33,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 19:15:33,150 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 19:15:33,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 19:15:33,151 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 19:15:33,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 19:15:33,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 19:15:33,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 19:15:33,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 19:15:33,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 19:15:33,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 19:15:33,152 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 19:15:33,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 19:15:33,152 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 19:15:33,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 19:15:33,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 19:15:33,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 19:15:33,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 19:15:33,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:15:33,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 19:15:33,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 19:15:33,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 19:15:33,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 19:15:33,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 19:15:33,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 19:15:33,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 19:15:33,154 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 19:15:33,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 19:15:33,154 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 19:15:33,155 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 950fd5ff5cc9d2c5e3d846192e43f4963ef3abd0ec7056eb5d764989d48b2064 [2023-02-15 19:15:33,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 19:15:33,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 19:15:33,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 19:15:33,337 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 19:15:33,337 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 19:15:33,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/sqm.c [2023-02-15 19:15:34,225 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 19:15:34,407 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 19:15:34,407 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sqm.c [2023-02-15 19:15:34,412 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81d80ea28/bccbb6059a2742f9889141059dff4a3f/FLAG2e459046e [2023-02-15 19:15:34,844 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81d80ea28/bccbb6059a2742f9889141059dff4a3f [2023-02-15 19:15:34,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 19:15:34,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 19:15:34,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 19:15:34,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 19:15:34,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 19:15:34,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:15:34" (1/1) ... [2023-02-15 19:15:34,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67de6243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:34, skipping insertion in model container [2023-02-15 19:15:34,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:15:34" (1/1) ... [2023-02-15 19:15:34,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 19:15:34,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 19:15:35,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sqm.c[586,599] [2023-02-15 19:15:35,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:15:35,032 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 19:15:35,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sqm.c[586,599] [2023-02-15 19:15:35,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:15:35,051 INFO L208 MainTranslator]: Completed translation [2023-02-15 19:15:35,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35 WrapperNode [2023-02-15 19:15:35,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 19:15:35,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 19:15:35,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 19:15:35,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 19:15:35,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,072 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2023-02-15 19:15:35,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 19:15:35,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 19:15:35,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 19:15:35,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 19:15:35,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,091 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 19:15:35,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 19:15:35,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 19:15:35,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 19:15:35,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (1/1) ... [2023-02-15 19:15:35,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:15:35,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:35,126 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) [2023-02-15 19:15:35,128 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 [2023-02-15 19:15:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 19:15:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 19:15:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 19:15:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 19:15:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 19:15:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 19:15:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 19:15:35,227 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 19:15:35,229 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 19:15:35,402 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 19:15:35,420 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 19:15:35,421 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 19:15:35,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:15:35 BoogieIcfgContainer [2023-02-15 19:15:35,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 19:15:35,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 19:15:35,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 19:15:35,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 19:15:35,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 07:15:34" (1/3) ... [2023-02-15 19:15:35,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9241aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:15:35, skipping insertion in model container [2023-02-15 19:15:35,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:15:35" (2/3) ... [2023-02-15 19:15:35,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9241aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:15:35, skipping insertion in model container [2023-02-15 19:15:35,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:15:35" (3/3) ... [2023-02-15 19:15:35,446 INFO L112 eAbstractionObserver]: Analyzing ICFG sqm.c [2023-02-15 19:15:35,462 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 19:15:35,462 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 19:15:35,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 19:15:35,511 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@101dda, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 19:15:35,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 19:15:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 19:15:35,519 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:35,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:35,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2023-02-15 19:15:35,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:35,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978875574] [2023-02-15 19:15:35,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:35,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:15:35,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:35,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978875574] [2023-02-15 19:15:35,618 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-15 19:15:35,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834822622] [2023-02-15 19:15:35,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:35,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:35,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:35,622 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) [2023-02-15 19:15:35,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 19:15:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:15:35,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-15 19:15:35,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:35,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 19:15:35,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834822622] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:15:35,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:15:35,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 19:15:35,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364313352] [2023-02-15 19:15:35,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:15:35,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 19:15:35,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:35,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 19:15:35,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 19:15:35,742 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:35,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:35,753 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2023-02-15 19:15:35,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 19:15:35,754 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 19:15:35,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:35,758 INFO L225 Difference]: With dead ends: 38 [2023-02-15 19:15:35,758 INFO L226 Difference]: Without dead ends: 17 [2023-02-15 19:15:35,760 INFO L412 NwaCegarLoop]: 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 [2023-02-15 19:15:35,762 INFO L413 NwaCegarLoop]: 24 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, 24 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 [2023-02-15 19:15:35,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:15:35,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-15 19:15:35,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-15 19:15:35,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:35,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2023-02-15 19:15:35,784 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2023-02-15 19:15:35,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:35,785 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2023-02-15 19:15:35,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-02-15 19:15:35,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 19:15:35,786 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:35,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:35,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 19:15:35,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-15 19:15:35,994 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:35,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:35,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2023-02-15 19:15:35,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:35,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106525526] [2023-02-15 19:15:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:35,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:36,029 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:36,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564526053] [2023-02-15 19:15:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:36,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:36,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:36,041 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) [2023-02-15 19:15:36,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 19:15:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:15:36,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 19:15:36,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:36,207 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-02-15 19:15:36,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2023-02-15 19:15:36,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:15:36,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:15:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:36,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 19:15:36,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:36,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106525526] [2023-02-15 19:15:36,349 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:36,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564526053] [2023-02-15 19:15:36,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564526053] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:15:36,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:15:36,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 19:15:36,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693404431] [2023-02-15 19:15:36,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:15:36,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 19:15:36,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:36,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 19:15:36,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-15 19:15:36,360 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:36,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:36,451 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2023-02-15 19:15:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 19:15:36,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 19:15:36,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:36,453 INFO L225 Difference]: With dead ends: 34 [2023-02-15 19:15:36,453 INFO L226 Difference]: Without dead ends: 32 [2023-02-15 19:15:36,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-02-15 19:15:36,455 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 40 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:36,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 54 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:15:36,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-15 19:15:36,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2023-02-15 19:15:36,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:36,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-02-15 19:15:36,468 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2023-02-15 19:15:36,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:36,468 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-02-15 19:15:36,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:36,468 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-02-15 19:15:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 19:15:36,469 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:36,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:36,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 19:15:36,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-02-15 19:15:36,674 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:36,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:36,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1755224028, now seen corresponding path program 1 times [2023-02-15 19:15:36,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:36,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774936983] [2023-02-15 19:15:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:36,692 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:36,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176267104] [2023-02-15 19:15:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:36,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:36,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:36,701 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) [2023-02-15 19:15:36,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 19:15:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:15:36,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 19:15:36,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:36,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:36,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 19:15:36,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:36,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774936983] [2023-02-15 19:15:36,762 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:36,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176267104] [2023-02-15 19:15:36,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176267104] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:15:36,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:15:36,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 19:15:36,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145668633] [2023-02-15 19:15:36,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:15:36,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 19:15:36,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:36,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 19:15:36,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:15:36,764 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:36,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:36,813 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2023-02-15 19:15:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 19:15:36,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 19:15:36,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:36,814 INFO L225 Difference]: With dead ends: 49 [2023-02-15 19:15:36,814 INFO L226 Difference]: Without dead ends: 40 [2023-02-15 19:15:36,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-15 19:15:36,815 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 25 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:36,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 30 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:15:36,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-15 19:15:36,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2023-02-15 19:15:36,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:36,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-02-15 19:15:36,819 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2023-02-15 19:15:36,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:36,819 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-15 19:15:36,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:36,819 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-02-15 19:15:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 19:15:36,820 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:36,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:36,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:37,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:37,024 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:37,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1842440164, now seen corresponding path program 1 times [2023-02-15 19:15:37,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:37,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879163668] [2023-02-15 19:15:37,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:37,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:37,041 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:37,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193036571] [2023-02-15 19:15:37,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:37,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:37,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:37,043 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) [2023-02-15 19:15:37,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 19:15:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:15:37,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 19:15:37,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:37,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:15:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:37,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:37,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879163668] [2023-02-15 19:15:37,142 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:37,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193036571] [2023-02-15 19:15:37,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193036571] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:15:37,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:15:37,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-02-15 19:15:37,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150739386] [2023-02-15 19:15:37,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:15:37,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 19:15:37,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:37,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 19:15:37,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 19:15:37,144 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:37,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:37,201 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2023-02-15 19:15:37,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 19:15:37,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 19:15:37,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:37,202 INFO L225 Difference]: With dead ends: 44 [2023-02-15 19:15:37,202 INFO L226 Difference]: Without dead ends: 37 [2023-02-15 19:15:37,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-02-15 19:15:37,203 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 27 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:37,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 45 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:15:37,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-15 19:15:37,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 24. [2023-02-15 19:15:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:37,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2023-02-15 19:15:37,207 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 14 [2023-02-15 19:15:37,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:37,207 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2023-02-15 19:15:37,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-02-15 19:15:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 19:15:37,208 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:37,208 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:37,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:37,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:37,415 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:37,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:37,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1667884396, now seen corresponding path program 1 times [2023-02-15 19:15:37,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:37,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845702201] [2023-02-15 19:15:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:37,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:37,440 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:37,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418075259] [2023-02-15 19:15:37,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:37,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:37,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:37,457 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) [2023-02-15 19:15:37,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 19:15:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:15:37,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 19:15:37,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:37,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 19:15:37,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:37,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845702201] [2023-02-15 19:15:37,547 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:37,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418075259] [2023-02-15 19:15:37,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418075259] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:15:37,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:15:37,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 19:15:37,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059800817] [2023-02-15 19:15:37,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:15:37,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 19:15:37,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:37,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 19:15:37,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-15 19:15:37,549 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:37,591 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2023-02-15 19:15:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 19:15:37,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 19:15:37,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:37,592 INFO L225 Difference]: With dead ends: 41 [2023-02-15 19:15:37,592 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 19:15:37,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-02-15 19:15:37,605 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:37,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 27 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:15:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 19:15:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2023-02-15 19:15:37,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-02-15 19:15:37,611 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2023-02-15 19:15:37,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:37,611 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-02-15 19:15:37,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:37,611 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-02-15 19:15:37,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 19:15:37,612 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:37,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:37,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:37,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:37,817 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:37,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:37,818 INFO L85 PathProgramCache]: Analyzing trace with hash 586911962, now seen corresponding path program 1 times [2023-02-15 19:15:37,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:37,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273960803] [2023-02-15 19:15:37,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:37,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:37,833 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:37,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2050637624] [2023-02-15 19:15:37,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:37,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:37,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:37,843 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) [2023-02-15 19:15:37,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 19:15:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:15:37,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-15 19:15:37,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:37,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 19:15:37,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:37,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-15 19:15:37,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:15:37,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-15 19:15:37,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:37,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-02-15 19:15:38,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:38,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:15:38,152 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_158 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_158) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2023-02-15 19:15:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-02-15 19:15:38,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:38,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273960803] [2023-02-15 19:15:38,159 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:38,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050637624] [2023-02-15 19:15:38,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050637624] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:15:38,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:15:38,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2023-02-15 19:15:38,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007746282] [2023-02-15 19:15:38,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:15:38,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 19:15:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:38,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 19:15:38,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=101, Unknown=1, NotChecked=20, Total=156 [2023-02-15 19:15:38,161 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:38,472 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2023-02-15 19:15:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-15 19:15:38,473 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 19:15:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:38,473 INFO L225 Difference]: With dead ends: 54 [2023-02-15 19:15:38,473 INFO L226 Difference]: Without dead ends: 52 [2023-02-15 19:15:38,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=357, Unknown=1, NotChecked=42, Total=552 [2023-02-15 19:15:38,474 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 120 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:38,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 55 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 85 Invalid, 0 Unknown, 29 Unchecked, 0.1s Time] [2023-02-15 19:15:38,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-15 19:15:38,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 26. [2023-02-15 19:15:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:38,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-02-15 19:15:38,479 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 16 [2023-02-15 19:15:38,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:38,479 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-02-15 19:15:38,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:38,480 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-02-15 19:15:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-15 19:15:38,480 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:38,480 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:38,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:38,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:38,685 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:38,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash 798963152, now seen corresponding path program 1 times [2023-02-15 19:15:38,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:38,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389463685] [2023-02-15 19:15:38,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:38,698 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:38,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200142019] [2023-02-15 19:15:38,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:38,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:38,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:38,700 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) [2023-02-15 19:15:38,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 19:15:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:15:38,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 46 conjunts are in the unsatisfiable core [2023-02-15 19:15:38,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:38,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 19:15:38,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:38,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2023-02-15 19:15:38,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2023-02-15 19:15:38,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:15:38,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:15:38,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:38,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2023-02-15 19:15:38,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:38,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-02-15 19:15:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:39,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:15:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:39,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:39,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389463685] [2023-02-15 19:15:39,397 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:39,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200142019] [2023-02-15 19:15:39,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200142019] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:15:39,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:15:39,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2023-02-15 19:15:39,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709637452] [2023-02-15 19:15:39,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:15:39,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 19:15:39,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:39,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 19:15:39,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-02-15 19:15:39,399 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:40,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:40,809 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2023-02-15 19:15:40,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-15 19:15:40,810 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-15 19:15:40,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:40,810 INFO L225 Difference]: With dead ends: 82 [2023-02-15 19:15:40,810 INFO L226 Difference]: Without dead ends: 80 [2023-02-15 19:15:40,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2023-02-15 19:15:40,811 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 136 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:40,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 106 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 19:15:40,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-02-15 19:15:40,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 46. [2023-02-15 19:15:40,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 45 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2023-02-15 19:15:40,824 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 20 [2023-02-15 19:15:40,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:40,824 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2023-02-15 19:15:40,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:40,824 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2023-02-15 19:15:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-15 19:15:40,825 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:40,825 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:40,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:41,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:41,030 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:41,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:41,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1334592554, now seen corresponding path program 2 times [2023-02-15 19:15:41,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:41,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406292260] [2023-02-15 19:15:41,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:41,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:41,046 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:41,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1834081069] [2023-02-15 19:15:41,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 19:15:41,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:41,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:41,048 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) [2023-02-15 19:15:41,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 19:15:41,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 19:15:41,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:15:41,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 19:15:41,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:41,154 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 19:15:41,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:15:41,182 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 19:15:41,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:41,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406292260] [2023-02-15 19:15:41,182 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:41,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834081069] [2023-02-15 19:15:41,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834081069] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:15:41,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:15:41,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-02-15 19:15:41,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134075800] [2023-02-15 19:15:41,183 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:15:41,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 19:15:41,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:41,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 19:15:41,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-02-15 19:15:41,184 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:41,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:41,269 INFO L93 Difference]: Finished difference Result 103 states and 118 transitions. [2023-02-15 19:15:41,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-15 19:15:41,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-15 19:15:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:41,271 INFO L225 Difference]: With dead ends: 103 [2023-02-15 19:15:41,272 INFO L226 Difference]: Without dead ends: 80 [2023-02-15 19:15:41,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-02-15 19:15:41,273 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 32 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:41,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 45 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:15:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-02-15 19:15:41,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 50. [2023-02-15 19:15:41,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:41,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2023-02-15 19:15:41,288 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 20 [2023-02-15 19:15:41,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:41,289 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2023-02-15 19:15:41,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:41,289 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2023-02-15 19:15:41,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-15 19:15:41,289 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:41,290 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:41,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:41,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-02-15 19:15:41,495 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:41,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:41,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1146782124, now seen corresponding path program 3 times [2023-02-15 19:15:41,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:41,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726610039] [2023-02-15 19:15:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:41,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:41,520 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:41,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621168044] [2023-02-15 19:15:41,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 19:15:41,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:41,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:41,529 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) [2023-02-15 19:15:41,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 19:15:41,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-15 19:15:41,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:15:41,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 19:15:41,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:41,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:15:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:41,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:41,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726610039] [2023-02-15 19:15:41,820 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:41,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621168044] [2023-02-15 19:15:41,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621168044] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:15:41,820 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:15:41,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-02-15 19:15:41,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916659567] [2023-02-15 19:15:41,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:15:41,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 19:15:41,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:41,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 19:15:41,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-02-15 19:15:41,821 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:42,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:42,032 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2023-02-15 19:15:42,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 19:15:42,033 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-02-15 19:15:42,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:42,033 INFO L225 Difference]: With dead ends: 113 [2023-02-15 19:15:42,033 INFO L226 Difference]: Without dead ends: 81 [2023-02-15 19:15:42,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2023-02-15 19:15:42,034 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 137 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:42,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 80 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:15:42,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-02-15 19:15:42,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2023-02-15 19:15:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.127659574468085) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:42,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2023-02-15 19:15:42,041 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 22 [2023-02-15 19:15:42,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:42,042 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2023-02-15 19:15:42,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2023-02-15 19:15:42,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 19:15:42,042 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:42,043 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:42,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:42,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:42,261 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:42,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:42,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1083970380, now seen corresponding path program 2 times [2023-02-15 19:15:42,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:42,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832330315] [2023-02-15 19:15:42,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:42,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:42,274 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:42,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732744647] [2023-02-15 19:15:42,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 19:15:42,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:42,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:42,275 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) [2023-02-15 19:15:42,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 19:15:42,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 19:15:42,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:15:42,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 19:15:42,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 19:15:42,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:15:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 19:15:42,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:42,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832330315] [2023-02-15 19:15:42,404 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:42,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732744647] [2023-02-15 19:15:42,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732744647] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:15:42,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:15:42,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-02-15 19:15:42,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217145739] [2023-02-15 19:15:42,405 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:15:42,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 19:15:42,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:42,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 19:15:42,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-02-15 19:15:42,406 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:42,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:42,492 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2023-02-15 19:15:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 19:15:42,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-02-15 19:15:42,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:42,493 INFO L225 Difference]: With dead ends: 64 [2023-02-15 19:15:42,493 INFO L226 Difference]: Without dead ends: 55 [2023-02-15 19:15:42,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-02-15 19:15:42,493 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 59 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:42,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 29 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:15:42,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-02-15 19:15:42,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 41. [2023-02-15 19:15:42,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.125) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:42,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2023-02-15 19:15:42,498 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 24 [2023-02-15 19:15:42,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:42,498 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2023-02-15 19:15:42,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:42,500 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2023-02-15 19:15:42,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 19:15:42,501 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:42,501 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:42,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:42,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-15 19:15:42,702 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:42,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:42,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1049585326, now seen corresponding path program 4 times [2023-02-15 19:15:42,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:42,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192029293] [2023-02-15 19:15:42,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:42,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:42,719 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:42,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918139911] [2023-02-15 19:15:42,719 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 19:15:42,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:42,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:42,725 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) [2023-02-15 19:15:42,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 19:15:43,056 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 19:15:43,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:15:43,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 43 conjunts are in the unsatisfiable core [2023-02-15 19:15:43,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:43,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 19:15:43,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:43,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-15 19:15:43,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:15:43,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-15 19:15:43,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-15 19:15:43,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-15 19:15:43,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2023-02-15 19:15:43,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:43,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:43,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2023-02-15 19:15:43,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2023-02-15 19:15:43,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:43,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:43,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2023-02-15 19:15:43,247 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 19:15:43,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:43,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-02-15 19:15:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:43,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:15:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 19:15:43,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:43,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192029293] [2023-02-15 19:15:43,708 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:43,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918139911] [2023-02-15 19:15:43,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918139911] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:15:43,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:15:43,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-02-15 19:15:43,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686976488] [2023-02-15 19:15:43,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:15:43,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-15 19:15:43,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:43,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-15 19:15:43,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=278, Unknown=1, NotChecked=0, Total=380 [2023-02-15 19:15:43,710 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 20 states, 20 states have (on average 2.05) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:44,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:44,349 INFO L93 Difference]: Finished difference Result 114 states and 125 transitions. [2023-02-15 19:15:44,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-02-15 19:15:44,349 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.05) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-02-15 19:15:44,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:44,351 INFO L225 Difference]: With dead ends: 114 [2023-02-15 19:15:44,351 INFO L226 Difference]: Without dead ends: 112 [2023-02-15 19:15:44,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=311, Invalid=810, Unknown=1, NotChecked=0, Total=1122 [2023-02-15 19:15:44,352 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 182 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:44,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 124 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 19:15:44,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-02-15 19:15:44,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 49. [2023-02-15 19:15:44,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1875) internal successors, (57), 48 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:44,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2023-02-15 19:15:44,358 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 24 [2023-02-15 19:15:44,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:44,358 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2023-02-15 19:15:44,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.05) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2023-02-15 19:15:44,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 19:15:44,359 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:44,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:44,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:44,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-15 19:15:44,560 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:44,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:44,560 INFO L85 PathProgramCache]: Analyzing trace with hash 149788298, now seen corresponding path program 3 times [2023-02-15 19:15:44,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:44,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722851529] [2023-02-15 19:15:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:44,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:44,572 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:44,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1048580252] [2023-02-15 19:15:44,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 19:15:44,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:44,590 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) [2023-02-15 19:15:44,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 19:15:44,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-15 19:15:44,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:15:44,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 19:15:44,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 19:15:44,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:15:44,832 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 19:15:44,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:15:44,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722851529] [2023-02-15 19:15:44,833 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:15:44,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048580252] [2023-02-15 19:15:44,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048580252] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:15:44,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:15:44,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-02-15 19:15:44,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579409632] [2023-02-15 19:15:44,833 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:15:44,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 19:15:44,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:15:44,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 19:15:44,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-02-15 19:15:44,834 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:44,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:15:44,968 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2023-02-15 19:15:44,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-15 19:15:44,968 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-15 19:15:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:15:44,968 INFO L225 Difference]: With dead ends: 84 [2023-02-15 19:15:44,968 INFO L226 Difference]: Without dead ends: 75 [2023-02-15 19:15:44,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-02-15 19:15:44,969 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 60 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:15:44,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 88 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:15:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-02-15 19:15:44,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 49. [2023-02-15 19:15:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:44,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2023-02-15 19:15:44,975 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 26 [2023-02-15 19:15:44,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:15:44,975 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2023-02-15 19:15:44,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:15:44,975 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2023-02-15 19:15:44,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 19:15:44,975 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:15:44,975 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:15:44,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 19:15:45,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-15 19:15:45,181 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:15:45,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:15:45,181 INFO L85 PathProgramCache]: Analyzing trace with hash -55017726, now seen corresponding path program 4 times [2023-02-15 19:15:45,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:15:45,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385709127] [2023-02-15 19:15:45,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:15:45,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:15:45,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:15:45,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643094844] [2023-02-15 19:15:45,201 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 19:15:45,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:15:45,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:15:45,218 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) [2023-02-15 19:15:45,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 19:15:45,371 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 19:15:45,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:15:45,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 52 conjunts are in the unsatisfiable core [2023-02-15 19:15:45,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:15:45,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 19:15:45,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2023-02-15 19:15:45,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2023-02-15 19:15:45,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:15:45,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:15:45,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 109 [2023-02-15 19:15:45,426 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:15:45,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 172 [2023-02-15 19:15:45,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 106 [2023-02-15 19:15:45,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 49 [2023-02-15 19:15:45,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 154 [2023-02-15 19:15:45,610 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:15:45,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 199 [2023-02-15 19:15:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,734 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:15:45,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:15:45,736 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:15:45,743 INFO L321 Elim1Store]: treesize reduction 36, result has 16.3 percent of original size [2023-02-15 19:15:45,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 87 treesize of output 72 [2023-02-15 19:15:46,018 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2023-02-15 19:15:46,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 49 [2023-02-15 19:15:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:15:46,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:15:49,284 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse33 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse31 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 4294967295) 4294967296)) (.cse12 (<= .cse33 2147483647)) (.cse32 (* .cse33 8))) (let ((.cse18 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse32 (- 34359738368))) (.cse1 (not .cse12)) (.cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (.cse8 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse11 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse32)) (.cse10 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse19 (* .cse31 8)) (.cse0 (<= .cse31 2147483647))) (and (or .cse0 (let ((.cse2 (+ (select .cse10 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse19 (- 34359738368))) 2))) (and (or .cse1 (forall ((v_ArrVal_469 Int)) (or (not (<= .cse2 v_ArrVal_469)) (= (let ((.cse9 (store .cse10 .cse11 v_ArrVal_469))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse9))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (select .cse9 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse3 .cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse6 .cse7 (+ .cse3 .cse4 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8)))))) 5)))) (or .cse12 (forall ((v_ArrVal_469 Int)) (or (not (<= .cse2 v_ArrVal_469)) (= (let ((.cse17 (store .cse10 .cse18 v_ArrVal_469))) (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse17))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse13 (select .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse16 (select .cse17 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse13 (select (select (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse15 .cse7 (+ .cse13 .cse16 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse16))))) 5))))))) (or (let ((.cse20 (+ (select .cse10 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse19)) 2))) (and (or .cse12 (forall ((v_ArrVal_469 Int)) (or (not (<= .cse20 v_ArrVal_469)) (= (let ((.cse25 (store .cse10 .cse18 v_ArrVal_469))) (let ((.cse22 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse25))) (let ((.cse23 (select .cse22 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse21 (select .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse24 (select .cse25 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse21 (select (select (store .cse22 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse23 .cse7 (+ .cse21 .cse24 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse24))))) 5)))) (or .cse1 (forall ((v_ArrVal_469 Int)) (or (not (<= .cse20 v_ArrVal_469)) (= (let ((.cse30 (store .cse10 .cse11 v_ArrVal_469))) (let ((.cse28 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse30))) (let ((.cse29 (select .cse28 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse26 (select .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse27 (select .cse30 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse26 .cse27 (select (select (store .cse28 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse29 .cse7 (+ .cse26 .cse27 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8)))))) 5)))))) (not .cse0)))))) is different from false [2023-02-15 19:16:02,704 WARN L233 SmtUtils]: Spent 8.75s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:16:32,604 WARN L233 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:16:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-15 19:16:32,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:16:32,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385709127] [2023-02-15 19:16:32,613 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:16:32,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643094844] [2023-02-15 19:16:32,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643094844] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:16:32,613 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:16:32,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-02-15 19:16:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739950729] [2023-02-15 19:16:32,614 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:16:32,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 19:16:32,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:16:32,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 19:16:32,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=495, Unknown=7, NotChecked=46, Total=650 [2023-02-15 19:16:32,614 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:16:52,801 WARN L233 SmtUtils]: Spent 19.13s on a formula simplification. DAG size of input: 262 DAG size of output: 83 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:16:55,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:17:03,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:17:05,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:17:34,808 WARN L233 SmtUtils]: Spent 21.70s on a formula simplification. DAG size of input: 89 DAG size of output: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:17:36,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:17:53,521 WARN L233 SmtUtils]: Spent 14.08s on a formula simplification. DAG size of input: 89 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:17:55,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:17:57,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:17:59,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:18:09,299 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse88 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse87 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 4294967295) 4294967296))) (let ((.cse89 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse47 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse69 (* .cse87 8)) (.cse86 (* .cse88 8))) (let ((.cse83 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse86)) (.cse84 (select .cse47 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse69))) (.cse43 (select .cse9 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse69))) (.cse42 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse86)) (.cse11 (<= .cse89 2147483647)) (.cse85 (* .cse89 8)) (.cse0 (<= .cse88 2147483647))) (let ((.cse22 (<= .cse87 2147483647)) (.cse19 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse86 (- 34359738368))) (.cse30 (not .cse0)) (.cse17 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse85)) (.cse18 (not .cse11)) (.cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (.cse7 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse10 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse85 (- 34359738368))) (.cse81 (select .cse9 .cse42)) (.cse82 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse85)) (.cse20 (store .cse47 .cse83 (+ .cse84 .cse43 2))) (.cse21 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) (.cse49 (select .cse9 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or .cse0 (let ((.cse1 (+ (select .cse9 .cse19) 2))) (and (or (forall ((v_ArrVal_469 Int)) (or (not (<= .cse1 v_ArrVal_469)) (= (let ((.cse8 (store .cse9 .cse10 v_ArrVal_469))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse8))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse5 (select .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse6 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 .cse4 (+ .cse5 .cse6 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse5 .cse6))))) 5))) .cse11) (or (forall ((v_ArrVal_469 Int)) (or (= (let ((.cse16 (store .cse9 .cse17 v_ArrVal_469))) (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse12 (select .cse16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse13 (select .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse12 .cse13 (select (select (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse15 .cse4 (+ .cse12 .cse13 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7)))))) 5) (not (<= .cse1 v_ArrVal_469)))) .cse18)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse20 .cse21) 9) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (or (not .cse22) (let ((.cse29 (+ .cse43 4)) (.cse28 (+ .cse43 2))) (and (or .cse0 (forall ((v_ArrVal_469 Int)) (or (= (let ((.cse27 (store (store .cse9 .cse19 .cse28) .cse10 v_ArrVal_469))) (let ((.cse23 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse27))) (let ((.cse24 (select .cse23 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse25 (select .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse26 (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse23 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse24 .cse4 (+ .cse25 .cse26 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse25 .cse26))))) 5) (not (<= .cse29 v_ArrVal_469))))) (or .cse30 (let ((.cse36 (store .cse9 .cse42 .cse28))) (and (or (forall ((v_ArrVal_469 Int)) (or (= (let ((.cse35 (store .cse36 .cse17 v_ArrVal_469))) (let ((.cse32 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse35))) (let ((.cse33 (select .cse32 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse31 (select .cse35 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse34 (select .cse33 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse31 (select (select (store .cse32 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse33 .cse4 (+ .cse31 .cse34 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse34))))) 5) (not (<= .cse29 v_ArrVal_469)))) .cse18) (or (forall ((v_ArrVal_469 Int)) (or (not (<= .cse29 v_ArrVal_469)) (= (let ((.cse41 (store .cse36 .cse10 v_ArrVal_469))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse41))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse37 (select .cse41 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse38 (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse37 .cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse40 .cse4 (+ .cse37 .cse38 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7)))))) 5))) .cse11))))))) (exists ((|ULTIMATE.start_main_~b~0#1.base| Int)) (let ((.cse45 (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse48 (select .cse47 .cse21)) (.cse46 (select .cse45 8)) (.cse44 (select .cse45 0))) (and (<= (+ .cse44 4) (select .cse45 16)) (= (+ .cse46 (select .cse47 .cse4) 2) .cse48) (= .cse48 (+ .cse46 .cse44 5)) (= .cse46 (+ .cse44 2)) (= .cse44 1))))) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select .cse9 .cse7) (+ .cse49 2)) (= (select .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (<= (+ .cse49 4) (select .cse9 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16))) (or .cse22 (let ((.cse68 (select .cse9 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse69 (- 34359738368))))) (let ((.cse56 (+ .cse68 4)) (.cse55 (+ .cse68 2))) (and (or (forall ((v_ArrVal_469 Int)) (or (= (let ((.cse54 (store (store .cse9 .cse42 .cse55) .cse17 v_ArrVal_469))) (let ((.cse52 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse54))) (let ((.cse53 (select .cse52 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse50 (select .cse53 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse51 (select .cse54 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse50 .cse51 (select (select (store .cse52 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse53 .cse4 (+ .cse50 .cse51 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7)))))) 5) (not (<= .cse56 v_ArrVal_469)))) .cse30) (or .cse0 (let ((.cse62 (store .cse9 .cse19 .cse55))) (and (or (forall ((v_ArrVal_469 Int)) (or (not (<= .cse56 v_ArrVal_469)) (= (let ((.cse61 (store .cse62 .cse17 v_ArrVal_469))) (let ((.cse59 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse61))) (let ((.cse60 (select .cse59 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse57 (select .cse60 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse58 (select .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse57 .cse58 (select (select (store .cse59 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse60 .cse4 (+ .cse57 .cse58 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7)))))) 5))) .cse18) (or (forall ((v_ArrVal_469 Int)) (or (not (<= .cse56 v_ArrVal_469)) (= (let ((.cse67 (store .cse62 .cse10 v_ArrVal_469))) (let ((.cse65 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse67))) (let ((.cse66 (select .cse65 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse63 (select .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse64 (select .cse66 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse63 .cse64 (select (select (store .cse65 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse66 .cse4 (+ .cse63 .cse64 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7)))))) 5))) .cse11)))))))) (or .cse30 (let ((.cse75 (+ .cse81 2))) (and (or (forall ((v_ArrVal_469 Int)) (or (= (let ((.cse74 (store .cse9 .cse17 v_ArrVal_469))) (let ((.cse72 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse74))) (let ((.cse73 (select .cse72 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse70 (select .cse74 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse71 (select .cse73 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse70 .cse71 (select (select (store .cse72 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse73 .cse4 (+ .cse70 .cse71 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7)))))) 5) (not (<= .cse75 v_ArrVal_469)))) .cse18) (or (forall ((v_ArrVal_469 Int)) (or (not (<= .cse75 v_ArrVal_469)) (= (let ((.cse80 (store .cse9 .cse10 v_ArrVal_469))) (let ((.cse76 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse80))) (let ((.cse77 (select .cse76 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse78 (select .cse80 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse79 (select .cse77 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse76 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse77 .cse4 (+ .cse78 .cse79 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse78 .cse79))))) 5))) .cse11)))) (= (select (store .cse47 .cse82 (+ (select .cse47 .cse83) .cse81 2)) .cse21) 9) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select (store .cse20 .cse82 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20) |c_ULTIMATE.start_main_~b~0#1.base|) .cse42) .cse84 .cse43 4)) .cse21) 9) (= .cse49 1)))))) is different from true [2023-02-15 19:18:09,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:18:09,303 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2023-02-15 19:18:09,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-15 19:18:09,303 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-15 19:18:09,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:18:09,303 INFO L225 Difference]: With dead ends: 71 [2023-02-15 19:18:09,303 INFO L226 Difference]: Without dead ends: 69 [2023-02-15 19:18:09,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 124.2s TimeCoverageRelationStatistics Valid=272, Invalid=1056, Unknown=12, NotChecked=142, Total=1482 [2023-02-15 19:18:09,304 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 82 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 29 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2023-02-15 19:18:09,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 116 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 286 Invalid, 4 Unknown, 37 Unchecked, 18.5s Time] [2023-02-15 19:18:09,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-02-15 19:18:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 53. [2023-02-15 19:18:09,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:18:09,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2023-02-15 19:18:09,329 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 28 [2023-02-15 19:18:09,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:18:09,331 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2023-02-15 19:18:09,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:18:09,331 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2023-02-15 19:18:09,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 19:18:09,333 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:18:09,333 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:18:09,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-02-15 19:18:09,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-15 19:18:09,534 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:18:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:18:09,534 INFO L85 PathProgramCache]: Analyzing trace with hash 48972360, now seen corresponding path program 5 times [2023-02-15 19:18:09,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:18:09,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045644536] [2023-02-15 19:18:09,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:18:09,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:18:09,546 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:18:09,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647830090] [2023-02-15 19:18:09,546 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 19:18:09,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:18:09,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:18:09,547 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 19:18:09,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 19:18:51,035 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-02-15 19:18:51,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:18:51,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 60 conjunts are in the unsatisfiable core [2023-02-15 19:18:51,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:18:51,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 19:18:51,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2023-02-15 19:18:51,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2023-02-15 19:18:51,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:18:51,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:18:51,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2023-02-15 19:18:51,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2023-02-15 19:18:51,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2023-02-15 19:18:51,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2023-02-15 19:18:51,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 20 [2023-02-15 19:18:51,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2023-02-15 19:18:51,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 129 [2023-02-15 19:18:51,297 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:18:51,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 196 [2023-02-15 19:18:51,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 100 [2023-02-15 19:18:51,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 71 [2023-02-15 19:18:51,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 123 [2023-02-15 19:18:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 42 [2023-02-15 19:18:51,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:18:51,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2023-02-15 19:18:51,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-02-15 19:18:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:18:51,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:19:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:19:04,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:19:04,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045644536] [2023-02-15 19:19:04,301 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:19:04,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647830090] [2023-02-15 19:19:04,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647830090] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:19:04,301 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:19:04,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 29 [2023-02-15 19:19:04,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660507104] [2023-02-15 19:19:04,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:19:04,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-15 19:19:04,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:19:04,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-15 19:19:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=680, Unknown=1, NotChecked=0, Total=812 [2023-02-15 19:19:04,303 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 29 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 29 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:19:15,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:19:15,878 INFO L93 Difference]: Finished difference Result 157 states and 174 transitions. [2023-02-15 19:19:15,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-15 19:19:15,878 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 29 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-15 19:19:15,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:19:15,878 INFO L225 Difference]: With dead ends: 157 [2023-02-15 19:19:15,879 INFO L226 Difference]: Without dead ends: 155 [2023-02-15 19:19:15,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=795, Invalid=3364, Unknown=1, NotChecked=0, Total=4160 [2023-02-15 19:19:15,880 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 414 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-02-15 19:19:15,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 198 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-02-15 19:19:15,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-02-15 19:19:15,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 81. [2023-02-15 19:19:15,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.225) internal successors, (98), 80 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:19:15,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 98 transitions. [2023-02-15 19:19:15,898 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 98 transitions. Word has length 28 [2023-02-15 19:19:15,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:19:15,898 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 98 transitions. [2023-02-15 19:19:15,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 29 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:19:15,898 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2023-02-15 19:19:15,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 19:19:15,899 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:19:15,899 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:19:15,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 19:19:16,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:19:16,106 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:19:16,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:19:16,106 INFO L85 PathProgramCache]: Analyzing trace with hash -412561416, now seen corresponding path program 6 times [2023-02-15 19:19:16,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:19:16,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126242968] [2023-02-15 19:19:16,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:19:16,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:19:16,116 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:19:16,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611836190] [2023-02-15 19:19:16,116 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 19:19:16,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:19:16,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:19:16,117 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 19:19:16,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 19:19:16,209 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-02-15 19:19:16,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:19:16,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 19:19:16,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:19:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 19:19:16,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:19:16,347 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 19:19:16,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:19:16,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126242968] [2023-02-15 19:19:16,347 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:19:16,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611836190] [2023-02-15 19:19:16,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611836190] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:19:16,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:19:16,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2023-02-15 19:19:16,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121030458] [2023-02-15 19:19:16,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:19:16,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 19:19:16,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:19:16,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 19:19:16,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-02-15 19:19:16,348 INFO L87 Difference]: Start difference. First operand 81 states and 98 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:19:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:19:16,508 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2023-02-15 19:19:16,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-15 19:19:16,508 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-02-15 19:19:16,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:19:16,509 INFO L225 Difference]: With dead ends: 116 [2023-02-15 19:19:16,509 INFO L226 Difference]: Without dead ends: 90 [2023-02-15 19:19:16,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2023-02-15 19:19:16,510 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 54 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:19:16,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 71 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:19:16,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-02-15 19:19:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 70. [2023-02-15 19:19:16,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 69 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:19:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2023-02-15 19:19:16,526 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 32 [2023-02-15 19:19:16,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:19:16,526 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2023-02-15 19:19:16,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:19:16,526 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2023-02-15 19:19:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 19:19:16,527 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:19:16,527 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:19:16,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-02-15 19:19:16,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-15 19:19:16,732 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:19:16,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:19:16,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1146912830, now seen corresponding path program 7 times [2023-02-15 19:19:16,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:19:16,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017812833] [2023-02-15 19:19:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:19:16,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:19:16,749 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:19:16,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825594166] [2023-02-15 19:19:16,749 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 19:19:16,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:19:16,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:19:16,766 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 19:19:16,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 19:19:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:19:17,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 66 conjunts are in the unsatisfiable core [2023-02-15 19:19:17,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:19:17,084 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-02-15 19:19:17,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2023-02-15 19:19:17,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2023-02-15 19:19:17,107 INFO L321 Elim1Store]: treesize reduction 36, result has 28.0 percent of original size [2023-02-15 19:19:17,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 64 [2023-02-15 19:19:17,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-02-15 19:19:17,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-15 19:19:17,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:19:17,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 41 [2023-02-15 19:19:17,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-15 19:19:17,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 19:19:17,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 109 [2023-02-15 19:19:17,264 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:19:17,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 172 [2023-02-15 19:19:17,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 66 [2023-02-15 19:19:17,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 71 [2023-02-15 19:19:17,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 119 [2023-02-15 19:19:17,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2023-02-15 19:19:17,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 163 [2023-02-15 19:19:17,501 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:19:17,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 199 [2023-02-15 19:19:17,623 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-02-15 19:19:17,623 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 207 treesize of output 187 [2023-02-15 19:19:17,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 237 [2023-02-15 19:19:17,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:19:17,721 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:19:17,722 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-02-15 19:19:17,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 78 treesize of output 71 [2023-02-15 19:19:17,950 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-02-15 19:19:17,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 43 [2023-02-15 19:19:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:19:17,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:20:02,022 WARN L233 SmtUtils]: Spent 12.82s on a formula simplification. DAG size of input: 170 DAG size of output: 135 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:20:02,046 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 24 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:20:02,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:20:02,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017812833] [2023-02-15 19:20:02,046 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:20:02,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825594166] [2023-02-15 19:20:02,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825594166] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:20:02,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:20:02,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 33 [2023-02-15 19:20:02,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890361706] [2023-02-15 19:20:02,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:20:02,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-02-15 19:20:02,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:20:02,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-02-15 19:20:02,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=901, Unknown=3, NotChecked=0, Total=1056 [2023-02-15 19:20:02,048 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:20:13,535 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse92 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse86 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 4294967295) 4294967296))) (let ((.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (* .cse86 8)) (.cse89 (* .cse92 8)) (.cse90 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 2) 4294967296)) (.cse91 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse39 (<= .cse91 2147483647)) (.cse58 (<= .cse90 2147483647)) (.cse19 (<= .cse92 2147483647)) (.cse88 (* .cse91 8)) (.cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse89)) (.cse31 (select .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse10))) (.cse32 (select .cse8 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse10))) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (.cse87 (* .cse90 8))) (let ((.cse29 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse87)) (.cse15 (select .cse17 .cse3)) (.cse30 (store .cse17 .cse27 (+ .cse31 .cse32 2))) (.cse26 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse88)) (.cse33 (not .cse19)) (.cse0 (not .cse58)) (.cse57 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse87)) (.cse45 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse88)) (.cse25 (not .cse39)) (.cse28 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse89)) (.cse6 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse9 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse89 (- 34359738368))) (.cse11 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse88 (- 34359738368))) (.cse12 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse87 (- 34359738368))) (.cse13 (<= .cse86 2147483647)) (.cse18 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) (.cse46 (select .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or (and .cse0 (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse7 (store (store (store .cse8 .cse9 (+ (select .cse8 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse10 (- 34359738368))) 2)) .cse11 v_ArrVal_634) .cse12 v_ArrVal_636))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse7))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse4 (select .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse2 .cse3 (+ .cse4 .cse5 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse4 .cse5))))) 5))) .cse13) (exists ((|ULTIMATE.start_main_~b~0#1.base| Int)) (let ((.cse16 (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse14 (select .cse16 8))) (and (= (+ .cse14 1) .cse15) (= (+ (select .cse16 0) 3) .cse15) (= (select .cse17 .cse18) (+ .cse14 .cse15 2)))))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (or .cse19 (and (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse24 (store (store .cse8 .cse9 v_ArrVal_634) .cse11 v_ArrVal_636))) (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24))) (let ((.cse21 (select .cse20 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse22 (select .cse24 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse23 (select .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse20 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse21 .cse3 (+ .cse22 .cse23 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse22 .cse23))))) 5)) .cse25)) (forall ((v_ArrVal_642 Int)) (= (select (store (store .cse17 .cse26 (+ (select .cse17 .cse27) (select .cse8 .cse28) 2)) .cse29 v_ArrVal_642) .cse18) 9)) (forall ((v_ArrVal_642 Int)) (= (select (store (store .cse30 .cse26 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse30) |c_ULTIMATE.start_main_~b~0#1.base|) .cse28) .cse31 .cse32 4)) .cse29 v_ArrVal_642) .cse18) 9)) (or .cse33 (and (or (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse38 (store (store .cse8 .cse28 v_ArrVal_634) .cse11 v_ArrVal_636))) (let ((.cse34 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse38))) (let ((.cse35 (select .cse34 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse36 (select .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse37 (select .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse34 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse35 .cse3 (+ .cse36 .cse37 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse36 .cse37))))) 5)) .cse39) (or (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse44 (store (store .cse8 .cse28 v_ArrVal_634) .cse45 v_ArrVal_636))) (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse44))) (let ((.cse43 (select .cse42 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse40 (select .cse44 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (select .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse40 .cse41 (select (select (store .cse42 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse43 .cse3 (+ .cse40 .cse41 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 5)) .cse25))) (= .cse15 4) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select .cse8 .cse6) (+ .cse46 2)) (= (select .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (forall ((v_ArrVal_642 Int)) (= (select (store .cse17 .cse26 v_ArrVal_642) .cse18) 9)) (or (and .cse0 (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse51 (store (store .cse8 .cse11 v_ArrVal_634) .cse12 v_ArrVal_636))) (let ((.cse47 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse51))) (let ((.cse48 (select .cse47 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse49 (select .cse51 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse50 (select .cse48 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse47 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse48 .cse3 (+ .cse49 .cse50 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse49 .cse50))))) 5))) .cse39) (forall ((v_ArrVal_642 Int)) (= (select (store .cse30 .cse26 v_ArrVal_642) .cse18) 9)) (or (and (or .cse0 (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse56 (store (store .cse8 .cse45 v_ArrVal_634) .cse57 v_ArrVal_636))) (let ((.cse53 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse56))) (let ((.cse54 (select .cse53 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse52 (select .cse56 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse55 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse52 (select (select (store .cse53 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse54 .cse3 (+ .cse52 .cse55 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse55))))) 5))) (or .cse58 (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse63 (store (store .cse8 .cse45 v_ArrVal_634) .cse12 v_ArrVal_636))) (let ((.cse61 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse63))) (let ((.cse62 (select .cse61 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse59 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse60 (select .cse62 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse59 .cse60 (select (select (store .cse61 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse62 .cse3 (+ .cse59 .cse60 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 5)))) .cse25) (or (let ((.cse80 (+ .cse32 2))) (and (or .cse33 (let ((.cse69 (store .cse8 .cse28 .cse80))) (and (or .cse39 (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse68 (store (store .cse69 .cse11 v_ArrVal_634) .cse12 v_ArrVal_636))) (let ((.cse66 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse68))) (let ((.cse67 (select .cse66 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse64 (select .cse68 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse65 (select .cse67 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse64 .cse65 (select (select (store .cse66 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse67 .cse3 (+ .cse64 .cse65 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 5))) (or (and (or .cse0 (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse74 (store (store .cse69 .cse45 v_ArrVal_634) .cse57 v_ArrVal_636))) (let ((.cse70 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse74))) (let ((.cse71 (select .cse70 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse72 (select .cse71 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse73 (select .cse74 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse70 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse71 .cse3 (+ .cse72 .cse73 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse72 .cse73))))) 5))) (or (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse79 (store (store .cse69 .cse45 v_ArrVal_634) .cse12 v_ArrVal_636))) (let ((.cse77 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse79))) (let ((.cse78 (select .cse77 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse75 (select .cse78 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse76 (select .cse79 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse75 .cse76 (select (select (store .cse77 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse78 .cse3 (+ .cse75 .cse76 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 5)) .cse58)) .cse25)))) (or .cse19 (forall ((v_ArrVal_636 Int) (v_ArrVal_634 Int)) (= (let ((.cse85 (store (store (store .cse8 .cse9 .cse80) .cse11 v_ArrVal_634) .cse12 v_ArrVal_636))) (let ((.cse82 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse85))) (let ((.cse83 (select .cse82 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse81 (select .cse85 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse84 (select .cse83 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse81 (select (select (store .cse82 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse83 .cse3 (+ .cse81 .cse84 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse84))))) 5))))) (not .cse13)) (forall ((v_ArrVal_642 Int)) (= (select (store .cse17 .cse27 v_ArrVal_642) .cse18) 9)) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= .cse46 1)))))) is different from true [2023-02-15 19:20:16,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]