./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/res2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/res2.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 105e7597bd9cfde6146cefe87563ba1bc48309677fb8b2f1d1f421bc92453e6b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 01:59:17,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 01:59:17,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 01:59:17,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 01:59:17,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 01:59:17,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 01:59:17,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 01:59:17,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 01:59:17,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 01:59:17,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 01:59:17,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 01:59:17,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 01:59:17,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 01:59:17,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 01:59:17,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 01:59:17,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 01:59:17,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 01:59:17,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 01:59:17,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 01:59:17,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 01:59:17,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 01:59:17,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 01:59:17,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 01:59:17,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 01:59:17,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 01:59:17,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 01:59:17,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 01:59:17,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 01:59:17,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 01:59:17,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 01:59:17,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 01:59:17,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 01:59:17,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 01:59:17,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 01:59:17,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 01:59:17,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 01:59:17,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 01:59:17,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 01:59:17,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 01:59:17,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 01:59:17,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 01:59:17,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 01:59:17,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 01:59:17,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 01:59:17,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 01:59:17,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 01:59:17,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 01:59:17,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 01:59:17,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 01:59:17,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 01:59:17,190 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 01:59:17,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 01:59:17,191 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 01:59:17,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 01:59:17,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 01:59:17,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 01:59:17,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 01:59:17,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 01:59:17,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 01:59:17,192 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 01:59:17,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 01:59:17,193 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 01:59:17,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 01:59:17,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 01:59:17,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 01:59:17,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 01:59:17,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 01:59:17,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 01:59:17,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 01:59:17,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 01:59:17,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 01:59:17,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 01:59:17,196 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 01:59:17,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 01:59:17,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 01:59:17,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 01:59:17,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 105e7597bd9cfde6146cefe87563ba1bc48309677fb8b2f1d1f421bc92453e6b [2021-12-17 01:59:17,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 01:59:17,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 01:59:17,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 01:59:17,449 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 01:59:17,450 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 01:59:17,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/res2.c [2021-12-17 01:59:17,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f388501de/166c475eb6574ac7bfc8533a8bbecf9d/FLAGbc60cddb4 [2021-12-17 01:59:17,901 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 01:59:17,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/res2.c [2021-12-17 01:59:17,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f388501de/166c475eb6574ac7bfc8533a8bbecf9d/FLAGbc60cddb4 [2021-12-17 01:59:18,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f388501de/166c475eb6574ac7bfc8533a8bbecf9d [2021-12-17 01:59:18,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 01:59:18,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 01:59:18,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 01:59:18,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 01:59:18,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 01:59:18,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417b7770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18, skipping insertion in model container [2021-12-17 01:59:18,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 01:59:18,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 01:59:18,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/res2.c[587,600] [2021-12-17 01:59:18,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 01:59:18,532 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 01:59:18,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/res2.c[587,600] [2021-12-17 01:59:18,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 01:59:18,565 INFO L208 MainTranslator]: Completed translation [2021-12-17 01:59:18,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18 WrapperNode [2021-12-17 01:59:18,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 01:59:18,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 01:59:18,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 01:59:18,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 01:59:18,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,606 INFO L137 Inliner]: procedures = 17, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 120 [2021-12-17 01:59:18,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 01:59:18,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 01:59:18,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 01:59:18,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 01:59:18,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 01:59:18,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 01:59:18,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 01:59:18,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 01:59:18,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (1/1) ... [2021-12-17 01:59:18,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 01:59:18,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 01:59:18,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 01:59:18,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 01:59:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 01:59:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 01:59:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 01:59:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 01:59:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 01:59:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 01:59:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 01:59:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 01:59:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 01:59:18,788 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 01:59:18,789 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 01:59:18,916 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 01:59:18,922 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 01:59:18,922 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-17 01:59:18,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 01:59:18 BoogieIcfgContainer [2021-12-17 01:59:18,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 01:59:18,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 01:59:18,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 01:59:18,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 01:59:18,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 01:59:18" (1/3) ... [2021-12-17 01:59:18,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e920e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 01:59:18, skipping insertion in model container [2021-12-17 01:59:18,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:59:18" (2/3) ... [2021-12-17 01:59:18,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e920e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 01:59:18, skipping insertion in model container [2021-12-17 01:59:18,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 01:59:18" (3/3) ... [2021-12-17 01:59:18,943 INFO L111 eAbstractionObserver]: Analyzing ICFG res2.c [2021-12-17 01:59:18,948 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 01:59:18,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 01:59:19,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 01:59:19,024 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 01:59:19,029 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 01:59:19,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 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) [2021-12-17 01:59:19,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-17 01:59:19,060 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 01:59:19,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 01:59:19,061 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 01:59:19,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 01:59:19,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1780399656, now seen corresponding path program 1 times [2021-12-17 01:59:19,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 01:59:19,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330227362] [2021-12-17 01:59:19,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:59:19,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 01:59:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 01:59:19,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 01:59:19,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 01:59:19,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330227362] [2021-12-17 01:59:19,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330227362] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 01:59:19,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 01:59:19,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 01:59:19,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710846313] [2021-12-17 01:59:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 01:59:19,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 01:59:19,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 01:59:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 01:59:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 01:59:19,269 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 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) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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) [2021-12-17 01:59:19,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 01:59:19,286 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2021-12-17 01:59:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 01:59:19,288 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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) Word has length 19 [2021-12-17 01:59:19,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 01:59:19,294 INFO L225 Difference]: With dead ends: 56 [2021-12-17 01:59:19,295 INFO L226 Difference]: Without dead ends: 26 [2021-12-17 01:59:19,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 01:59:19,302 INFO L933 BasicCegarLoop]: 36 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, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 01:59:19,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 01:59:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-12-17 01:59:19,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-12-17 01:59:19,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 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) [2021-12-17 01:59:19,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-12-17 01:59:19,354 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2021-12-17 01:59:19,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 01:59:19,355 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-12-17 01:59:19,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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) [2021-12-17 01:59:19,355 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-12-17 01:59:19,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-17 01:59:19,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 01:59:19,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 01:59:19,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 01:59:19,358 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 01:59:19,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 01:59:19,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1279549768, now seen corresponding path program 1 times [2021-12-17 01:59:19,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 01:59:19,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374282114] [2021-12-17 01:59:19,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:59:19,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 01:59:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 01:59:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 01:59:19,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 01:59:19,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374282114] [2021-12-17 01:59:19,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374282114] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 01:59:19,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 01:59:19,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 01:59:19,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175089733] [2021-12-17 01:59:19,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 01:59:19,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 01:59:19,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 01:59:19,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 01:59:19,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 01:59:19,499 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2021-12-17 01:59:19,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 01:59:19,588 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2021-12-17 01:59:19,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 01:59:19,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) Word has length 19 [2021-12-17 01:59:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 01:59:19,591 INFO L225 Difference]: With dead ends: 57 [2021-12-17 01:59:19,592 INFO L226 Difference]: Without dead ends: 38 [2021-12-17 01:59:19,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 01:59:19,598 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 39 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 01:59:19,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 14 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 01:59:19,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-12-17 01:59:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-12-17 01:59:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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) [2021-12-17 01:59:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2021-12-17 01:59:19,610 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2021-12-17 01:59:19,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 01:59:19,612 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-12-17 01:59:19,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2021-12-17 01:59:19,615 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-12-17 01:59:19,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-17 01:59:19,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 01:59:19,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 01:59:19,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 01:59:19,616 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 01:59:19,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 01:59:19,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1740145276, now seen corresponding path program 1 times [2021-12-17 01:59:19,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 01:59:19,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339170263] [2021-12-17 01:59:19,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:59:19,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 01:59:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 01:59:20,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 01:59:20,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 01:59:20,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339170263] [2021-12-17 01:59:20,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339170263] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 01:59:20,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457263464] [2021-12-17 01:59:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:59:20,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 01:59:20,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 01:59:20,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 01:59:20,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 01:59:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 01:59:20,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 59 conjunts are in the unsatisfiable core [2021-12-17 01:59:20,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 01:59:20,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 160 [2021-12-17 01:59:20,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-17 01:59:21,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:21,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-12-17 01:59:21,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:21,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 23 [2021-12-17 01:59:21,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:21,471 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-12-17 01:59:21,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 26 treesize of output 28 [2021-12-17 01:59:21,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:21,722 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-12-17 01:59:21,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 40 [2021-12-17 01:59:21,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:21,900 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 01:59:21,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 26 treesize of output 32 [2021-12-17 01:59:22,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:22,154 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-17 01:59:22,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 40 [2021-12-17 01:59:22,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:22,417 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 01:59:22,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 39 treesize of output 27 [2021-12-17 01:59:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 01:59:22,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 01:59:25,853 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:25,854 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:25,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 280 treesize of output 272 [2021-12-17 01:59:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 01:59:26,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457263464] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 01:59:26,167 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 01:59:26,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 41 [2021-12-17 01:59:26,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912202561] [2021-12-17 01:59:26,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 01:59:26,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-17 01:59:26,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 01:59:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-17 01:59:26,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1359, Unknown=0, NotChecked=0, Total=1640 [2021-12-17 01:59:26,171 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 41 states, 41 states have (on average 1.975609756097561) internal successors, (81), 41 states have internal predecessors, (81), 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) [2021-12-17 01:59:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 01:59:29,219 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2021-12-17 01:59:29,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-17 01:59:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.975609756097561) internal successors, (81), 41 states have internal predecessors, (81), 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 31 [2021-12-17 01:59:29,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 01:59:29,222 INFO L225 Difference]: With dead ends: 78 [2021-12-17 01:59:29,222 INFO L226 Difference]: Without dead ends: 73 [2021-12-17 01:59:29,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 41 SyntacticMatches, 9 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 927 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-12-17 01:59:29,224 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 36 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 211 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 01:59:29,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 125 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 62 Invalid, 0 Unknown, 211 Unchecked, 0.1s Time] [2021-12-17 01:59:29,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-17 01:59:29,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 59. [2021-12-17 01:59:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 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) [2021-12-17 01:59:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2021-12-17 01:59:29,233 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 31 [2021-12-17 01:59:29,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 01:59:29,233 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2021-12-17 01:59:29,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.975609756097561) internal successors, (81), 41 states have internal predecessors, (81), 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) [2021-12-17 01:59:29,234 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2021-12-17 01:59:29,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-17 01:59:29,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 01:59:29,235 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 01:59:29,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 01:59:29,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 01:59:29,449 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 01:59:29,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 01:59:29,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1839245574, now seen corresponding path program 2 times [2021-12-17 01:59:29,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 01:59:29,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660922187] [2021-12-17 01:59:29,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:59:29,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 01:59:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 01:59:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 01:59:29,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 01:59:29,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660922187] [2021-12-17 01:59:29,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660922187] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 01:59:29,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631802201] [2021-12-17 01:59:29,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-17 01:59:29,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 01:59:29,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 01:59:29,549 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 01:59:29,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 01:59:29,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-17 01:59:29,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 01:59:29,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 01:59:29,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 01:59:29,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 01:59:29,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 01:59:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 01:59:29,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631802201] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 01:59:29,780 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 01:59:29,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-12-17 01:59:29,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593497635] [2021-12-17 01:59:29,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 01:59:29,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 01:59:29,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 01:59:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 01:59:29,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-17 01:59:29,782 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2021-12-17 01:59:29,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 01:59:29,985 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2021-12-17 01:59:29,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 01:59:29,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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 33 [2021-12-17 01:59:29,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 01:59:29,986 INFO L225 Difference]: With dead ends: 128 [2021-12-17 01:59:29,986 INFO L226 Difference]: Without dead ends: 72 [2021-12-17 01:59:29,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-12-17 01:59:29,988 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 76 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 01:59:29,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 39 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 01:59:29,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-12-17 01:59:29,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 54. [2021-12-17 01:59:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 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) [2021-12-17 01:59:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-12-17 01:59:29,995 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 33 [2021-12-17 01:59:29,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 01:59:29,996 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-12-17 01:59:29,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2021-12-17 01:59:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-12-17 01:59:29,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-17 01:59:29,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 01:59:29,997 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 01:59:30,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 01:59:30,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-17 01:59:30,212 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 01:59:30,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 01:59:30,212 INFO L85 PathProgramCache]: Analyzing trace with hash 447877832, now seen corresponding path program 3 times [2021-12-17 01:59:30,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 01:59:30,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681505548] [2021-12-17 01:59:30,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:59:30,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 01:59:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 01:59:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-17 01:59:30,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 01:59:30,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681505548] [2021-12-17 01:59:30,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681505548] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 01:59:30,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043901381] [2021-12-17 01:59:30,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-17 01:59:30,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 01:59:30,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 01:59:30,285 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 01:59:30,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 01:59:30,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-17 01:59:30,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 01:59:30,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 01:59:30,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 01:59:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-17 01:59:30,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 01:59:30,542 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-17 01:59:30,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043901381] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 01:59:30,542 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 01:59:30,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-12-17 01:59:30,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438701998] [2021-12-17 01:59:30,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 01:59:30,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 01:59:30,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 01:59:30,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 01:59:30,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-17 01:59:30,544 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2021-12-17 01:59:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 01:59:30,717 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2021-12-17 01:59:30,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 01:59:30,718 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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 35 [2021-12-17 01:59:30,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 01:59:30,718 INFO L225 Difference]: With dead ends: 65 [2021-12-17 01:59:30,718 INFO L226 Difference]: Without dead ends: 49 [2021-12-17 01:59:30,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-12-17 01:59:30,719 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 73 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 01:59:30,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 30 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 01:59:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-12-17 01:59:30,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2021-12-17 01:59:30,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 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) [2021-12-17 01:59:30,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2021-12-17 01:59:30,724 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 35 [2021-12-17 01:59:30,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 01:59:30,724 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2021-12-17 01:59:30,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2021-12-17 01:59:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2021-12-17 01:59:30,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-17 01:59:30,725 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 01:59:30,725 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 01:59:30,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 01:59:30,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 01:59:30,926 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 01:59:30,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 01:59:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1410382416, now seen corresponding path program 4 times [2021-12-17 01:59:30,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 01:59:30,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905223605] [2021-12-17 01:59:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:59:30,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 01:59:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 01:59:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 01:59:32,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 01:59:32,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905223605] [2021-12-17 01:59:32,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905223605] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 01:59:32,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771455248] [2021-12-17 01:59:32,658 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-17 01:59:32,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 01:59:32,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 01:59:32,664 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 01:59:32,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 01:59:32,733 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-17 01:59:32,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 01:59:32,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 78 conjunts are in the unsatisfiable core [2021-12-17 01:59:32,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 01:59:32,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-17 01:59:32,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:32,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-17 01:59:32,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:32,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:32,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-17 01:59:33,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:33,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:33,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:33,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2021-12-17 01:59:33,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:33,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-12-17 01:59:33,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:33,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:33,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:33,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:33,644 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 01:59:33,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 48 [2021-12-17 01:59:33,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:33,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:33,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:33,940 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:33,950 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-12-17 01:59:33,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 67 [2021-12-17 01:59:34,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:34,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:34,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:34,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:34,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:34,425 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-12-17 01:59:34,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 73 [2021-12-17 01:59:34,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:34,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 38 [2021-12-17 01:59:34,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:34,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:34,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:34,857 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 01:59:34,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 49 [2021-12-17 01:59:35,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:35,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:35,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:35,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:35,095 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-12-17 01:59:35,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 68 [2021-12-17 01:59:35,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:35,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 01:59:35,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:35,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2021-12-17 01:59:35,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:35,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 38 [2021-12-17 01:59:35,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 01:59:35,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 16 [2021-12-17 01:59:35,577 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 01:59:35,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 02:02:54,494 WARN L838 $PredicateComparison]: unable to prove that (forall ((~N~0 Int)) (or (<= ~N~0 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_323 Int) (v_ArrVal_334 Int) (v_ArrVal_321 Int) (v_ArrVal_332 Int) (v_ArrVal_320 Int) (v_ArrVal_330 Int) (v_ArrVal_318 Int) (v_ArrVal_327 Int) (v_ArrVal_315 Int) (v_ArrVal_325 Int)) (let ((.cse10 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_315))) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse10))) (let ((.cse8 (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse12 (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_320))) (.cse6 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4))) (let ((.cse0 (store (store (select .cse12 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_321) .cse6 v_ArrVal_323))) (let ((.cse5 (store .cse12 |c_ULTIMATE.start_main_~b~0#1.base| .cse0))) (let ((.cse1 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse11 (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_327))) (.cse4 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 4))) (let ((.cse9 (store (store (select .cse11 |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| v_ArrVal_330) .cse4 v_ArrVal_332))) (let ((.cse2 (store .cse11 |c_ULTIMATE.start_main_~c~0#1.base| .cse9))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< 1 v_ArrVal_330) (< 1 v_ArrVal_321) (< (+ (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_325) (<= (+ v_ArrVal_334 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_334)) |c_ULTIMATE.start_main_~c~0#1.base|) .cse4)) (* 3 ~N~0)) (< (+ (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_325)) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) v_ArrVal_325) v_ArrVal_327) (< (+ v_ArrVal_318 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_318)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) v_ArrVal_320) (< 1 v_ArrVal_315) (< (+ (select .cse9 |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_334) (< 1 v_ArrVal_332) (< 1 v_ArrVal_323) (< (+ (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_318)))))))))))))))) is different from false [2021-12-17 02:03:20,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 2 times theorem prover too weak. 0 trivial. 2 not checked. [2021-12-17 02:03:20,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771455248] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 02:03:20,285 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 02:03:20,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 27, 27] total 82 [2021-12-17 02:03:20,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211015964] [2021-12-17 02:03:20,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 02:03:20,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2021-12-17 02:03:20,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:03:20,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-12-17 02:03:20,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=5778, Unknown=84, NotChecked=158, Total=6642 [2021-12-17 02:03:20,290 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 82 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 82 states have internal predecessors, (116), 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) [2021-12-17 02:04:22,648 WARN L227 SmtUtils]: Spent 13.69s on a formula simplification. DAG size of input: 122 DAG size of output: 109 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-17 02:08:44,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:08:44,729 INFO L93 Difference]: Finished difference Result 118 states and 136 transitions. [2021-12-17 02:08:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-12-17 02:08:44,730 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 82 states have internal predecessors, (116), 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 43 [2021-12-17 02:08:44,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:08:44,731 INFO L225 Difference]: With dead ends: 118 [2021-12-17 02:08:44,731 INFO L226 Difference]: Without dead ends: 113 [2021-12-17 02:08:44,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 113 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4547 ImplicationChecksByTransitivity, 521.7s TimeCoverageRelationStatistics Valid=1204, Invalid=11478, Unknown=204, NotChecked=224, Total=13110 [2021-12-17 02:08:44,736 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 36 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 735 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:08:44,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 200 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 247 Invalid, 0 Unknown, 735 Unchecked, 0.2s Time] [2021-12-17 02:08:44,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-12-17 02:08:44,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 103. [2021-12-17 02:08:44,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.1764705882352942) internal successors, (120), 102 states have internal predecessors, (120), 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) [2021-12-17 02:08:44,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 120 transitions. [2021-12-17 02:08:44,748 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 120 transitions. Word has length 43 [2021-12-17 02:08:44,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:08:44,748 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 120 transitions. [2021-12-17 02:08:44,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 82 states have internal predecessors, (116), 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) [2021-12-17 02:08:44,749 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 120 transitions. [2021-12-17 02:08:44,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-17 02:08:44,750 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:08:44,750 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 02:08:44,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 02:08:44,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 02:08:44,968 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:08:44,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:08:44,968 INFO L85 PathProgramCache]: Analyzing trace with hash -313453870, now seen corresponding path program 5 times [2021-12-17 02:08:44,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:08:44,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964930931] [2021-12-17 02:08:44,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:08:44,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:08:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:08:45,080 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-17 02:08:45,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:08:45,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964930931] [2021-12-17 02:08:45,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964930931] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 02:08:45,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110965134] [2021-12-17 02:08:45,085 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-17 02:08:45,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 02:08:45,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 02:08:45,086 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 02:08:45,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 02:08:45,220 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-12-17 02:08:45,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 02:08:45,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 02:08:45,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 02:08:45,370 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-17 02:08:45,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 02:08:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-17 02:08:45,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110965134] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 02:08:45,456 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 02:08:45,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-12-17 02:08:45,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470929643] [2021-12-17 02:08:45,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 02:08:45,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-17 02:08:45,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:08:45,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-17 02:08:45,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-12-17 02:08:45,458 INFO L87 Difference]: Start difference. First operand 103 states and 120 transitions. Second operand has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 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) [2021-12-17 02:08:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:08:45,959 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2021-12-17 02:08:45,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 02:08:45,959 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 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 45 [2021-12-17 02:08:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:08:45,960 INFO L225 Difference]: With dead ends: 154 [2021-12-17 02:08:45,960 INFO L226 Difference]: Without dead ends: 69 [2021-12-17 02:08:45,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2021-12-17 02:08:45,962 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 222 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 02:08:45,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 53 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 02:08:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-17 02:08:45,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 56. [2021-12-17 02:08:45,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 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) [2021-12-17 02:08:45,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2021-12-17 02:08:45,970 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 45 [2021-12-17 02:08:45,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:08:45,970 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2021-12-17 02:08:45,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 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) [2021-12-17 02:08:45,970 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2021-12-17 02:08:45,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-17 02:08:45,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:08:45,972 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 02:08:45,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 02:08:46,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 02:08:46,184 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:08:46,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:08:46,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1101638372, now seen corresponding path program 6 times [2021-12-17 02:08:46,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:08:46,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290643135] [2021-12-17 02:08:46,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:08:46,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:08:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:08:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 02:08:48,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:08:48,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290643135] [2021-12-17 02:08:48,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290643135] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 02:08:48,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035157796] [2021-12-17 02:08:48,941 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-17 02:08:48,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 02:08:48,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 02:08:48,942 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 02:08:48,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 02:08:49,106 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-12-17 02:08:49,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 02:08:49,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 116 conjunts are in the unsatisfiable core [2021-12-17 02:08:49,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 02:08:49,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-17 02:08:49,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-17 02:08:49,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 35 treesize of output 37 [2021-12-17 02:08:49,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 37 treesize of output 42 [2021-12-17 02:08:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,795 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:49,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2021-12-17 02:08:50,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:50,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:50,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:50,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:50,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:50,038 INFO L354 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2021-12-17 02:08:50,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 61 [2021-12-17 02:08:50,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:50,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:50,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:50,250 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-12-17 02:08:50,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 68 [2021-12-17 02:08:53,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:53,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:53,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,149 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:53,159 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 02:08:53,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 65 [2021-12-17 02:08:53,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:53,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:53,705 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-12-17 02:08:53,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 78 treesize of output 79 [2021-12-17 02:08:54,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:54,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:54,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:54,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:54,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:54,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:54,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:54,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:54,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:54,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:54,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:54,487 INFO L354 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2021-12-17 02:08:54,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 94 [2021-12-17 02:08:55,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2021-12-17 02:08:55,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,178 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-12-17 02:08:55,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 63 [2021-12-17 02:08:55,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:55,401 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-12-17 02:08:55,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 69 [2021-12-17 02:08:56,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:56,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:56,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,147 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:56,157 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 02:08:56,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 66 [2021-12-17 02:08:56,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:56,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:56,895 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-12-17 02:08:56,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 109 treesize of output 88 [2021-12-17 02:08:57,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:57,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:57,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:57,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:57,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:57,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:57,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:57,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:57,661 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:57,663 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:57,676 INFO L354 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2021-12-17 02:08:57,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 107 treesize of output 97 [2021-12-17 02:08:58,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2021-12-17 02:08:58,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,171 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-12-17 02:08:58,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 63 [2021-12-17 02:08:58,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,408 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-12-17 02:08:58,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 69 [2021-12-17 02:08:58,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,899 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:58,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 02:08:58,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 02:08:58,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 20 [2021-12-17 02:08:58,974 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 02:08:58,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 02:09:07,227 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_559 Int) (v_ArrVal_557 Int) (v_ArrVal_556 Int)) (let ((.cse1 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_556))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse1))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse3 (* |v_ULTIMATE.start_main_~i~0#1_131| 4))) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_131| 1)) (< (+ (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~c~0#1.offset|)) v_ArrVal_557) (< 1 v_ArrVal_556) (< (+ |v_ULTIMATE.start_main_~i~0#1_131| 2) c_~N~0) (< (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_557)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~c~0#1.offset|)) v_ArrVal_557) v_ArrVal_559) (<= (+ v_ArrVal_559 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_559)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~c~0#1.offset| 4))) (* 3 c_~N~0))))))) is different from false [2021-12-17 02:09:09,354 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_559 Int) (v_ArrVal_557 Int) (v_ArrVal_556 Int)) (let ((.cse3 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~c~0#1.offset| 4) v_ArrVal_556))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse3))) (let ((.cse2 (* |v_ULTIMATE.start_main_~i~0#1_131| 4)) (.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_131| 1)) (< 1 v_ArrVal_556) (<= (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_559)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset| 4)) v_ArrVal_559) (* 3 c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_131| 2) c_~N~0) (< (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_557)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset|)) v_ArrVal_557) v_ArrVal_559) (< (+ (select .cse3 |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_557)))))) is different from false [2021-12-17 02:09:11,559 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_554 Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_559 Int) (v_ArrVal_557 Int) (v_ArrVal_556 Int)) (let ((.cse3 (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse4 |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_554) (+ .cse4 |c_ULTIMATE.start_main_~c~0#1.offset| 4) v_ArrVal_556)))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse3))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse2 (* |v_ULTIMATE.start_main_~i~0#1_131| 4))) (or (<= (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_559)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset| 4)) v_ArrVal_559) (* 3 c_~N~0)) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_131| 1)) (< 1 v_ArrVal_554) (< 1 v_ArrVal_556) (< (+ |v_ULTIMATE.start_main_~i~0#1_131| 2) c_~N~0) (< (+ (select .cse3 |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_557) (< (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_557)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset|)) v_ArrVal_557) v_ArrVal_559)))))) is different from false [2021-12-17 02:09:13,758 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_554 Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_559 Int) (v_ArrVal_557 Int) (v_ArrVal_556 Int)) (let ((.cse3 (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse4 |c_ULTIMATE.start_main_~c~0#1.offset| 4) v_ArrVal_554) (+ .cse4 |c_ULTIMATE.start_main_~c~0#1.offset| 8) v_ArrVal_556)))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse3))) (let ((.cse2 (* |v_ULTIMATE.start_main_~i~0#1_131| 4)) (.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_131| 1)) (< (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_557)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset|)) v_ArrVal_557) v_ArrVal_559) (<= (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_559)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset| 4)) v_ArrVal_559) (* 3 c_~N~0)) (< 1 v_ArrVal_554) (< 1 v_ArrVal_556) (< (+ |v_ULTIMATE.start_main_~i~0#1_131| 2) c_~N~0) (< (+ (select .cse3 |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_557)))))) is different from false [2021-12-17 02:09:16,163 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_554 Int) (v_ArrVal_552 Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_559 Int) (v_ArrVal_557 Int) (v_ArrVal_556 Int)) (let ((.cse0 (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse4 |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_552) (+ .cse4 |c_ULTIMATE.start_main_~c~0#1.offset| 4) v_ArrVal_554) (+ .cse4 |c_ULTIMATE.start_main_~c~0#1.offset| 8) v_ArrVal_556)))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse0))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse3 (* |v_ULTIMATE.start_main_~i~0#1_131| 4))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_557) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_131| 1)) (< 1 v_ArrVal_552) (< 1 v_ArrVal_554) (< 1 v_ArrVal_556) (< (+ |v_ULTIMATE.start_main_~i~0#1_131| 2) c_~N~0) (<= (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_559)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~c~0#1.offset| 4)) v_ArrVal_559) (* 3 c_~N~0)) (< (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_557)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~c~0#1.offset|)) v_ArrVal_557) v_ArrVal_559)))))) is different from false [2021-12-17 02:09:18,422 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_554 Int) (v_ArrVal_552 Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_559 Int) (v_ArrVal_557 Int) (v_ArrVal_556 Int)) (let ((.cse3 (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| v_ArrVal_552) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 4) v_ArrVal_554) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) v_ArrVal_556))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse3))) (let ((.cse2 (* |v_ULTIMATE.start_main_~i~0#1_131| 4)) (.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_131| 1)) (< (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_557)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset|)) v_ArrVal_557) v_ArrVal_559) (< 1 v_ArrVal_552) (< 1 v_ArrVal_554) (< 1 v_ArrVal_556) (< (+ |v_ULTIMATE.start_main_~i~0#1_131| 2) c_~N~0) (<= (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_559)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset| 4)) v_ArrVal_559) (* 3 c_~N~0)) (< (+ (select .cse3 |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_557)))))) is different from false [2021-12-17 02:12:30,000 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_554 Int) (v_ArrVal_552 Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_549 Int) (|v_ULTIMATE.start_main_~i~0#1_140| Int) (v_ArrVal_559 Int) (v_ArrVal_547 Int) (v_ArrVal_557 Int) (v_ArrVal_546 Int) (v_ArrVal_556 Int)) (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_549)))) (let ((.cse3 (store (store (store (select .cse6 |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| v_ArrVal_552) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 4) v_ArrVal_554) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) v_ArrVal_556))) (let ((.cse0 (store .cse6 |c_ULTIMATE.start_main_~c~0#1.base| .cse3))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse2 (* |v_ULTIMATE.start_main_~i~0#1_131| 4)) (.cse5 (* |v_ULTIMATE.start_main_~i~0#1_140| 4))) (or (< (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_557)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset|)) v_ArrVal_557) v_ArrVal_559) (< 1 v_ArrVal_552) (< 1 v_ArrVal_554) (< (+ |v_ULTIMATE.start_main_~i~0#1_131| 2) c_~N~0) (< (+ (select .cse3 |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_557) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_131| 1)) (< (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_546) (< (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_546)) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse5)) v_ArrVal_546) v_ArrVal_547) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_140| 1)) (<= (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_559)) |c_ULTIMATE.start_main_~c~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~c~0#1.offset| 4)) v_ArrVal_559) (* 3 c_~N~0)) (< 1 v_ArrVal_556) (< (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_547)) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse5 4)) v_ArrVal_547) v_ArrVal_549) (< (+ |v_ULTIMATE.start_main_~i~0#1_140| 2) c_~N~0)))))))) is different from false Killed by 15