./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 05:39:29,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 05:39:29,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 05:39:29,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 05:39:29,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 05:39:29,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 05:39:29,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 05:39:29,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 05:39:29,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 05:39:29,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 05:39:29,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 05:39:29,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 05:39:29,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 05:39:29,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 05:39:29,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 05:39:29,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 05:39:29,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 05:39:29,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 05:39:29,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 05:39:29,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 05:39:29,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 05:39:29,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 05:39:29,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 05:39:29,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 05:39:29,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 05:39:29,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 05:39:29,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 05:39:29,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 05:39:29,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 05:39:29,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 05:39:29,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 05:39:29,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 05:39:29,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 05:39:29,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 05:39:29,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 05:39:29,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 05:39:29,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 05:39:29,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 05:39:29,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 05:39:29,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 05:39:29,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 05:39:29,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 05:39:29,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 05:39:29,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 05:39:29,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 05:39:29,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 05:39:29,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 05:39:29,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 05:39:29,880 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 05:39:29,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 05:39:29,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 05:39:29,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 05:39:29,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 05:39:29,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 05:39:29,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 05:39:29,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 05:39:29,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 05:39:29,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 05:39:29,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 05:39:29,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 05:39:29,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 05:39:29,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:39:29,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 05:39:29,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 05:39:29,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 05:39:29,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 05:39:29,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 05:39:29,884 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 05:39:29,884 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 05:39:29,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 05:39:29,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 05:39:29,886 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b [2021-11-04 05:39:30,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 05:39:30,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 05:39:30,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 05:39:30,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 05:39:30,163 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 05:39:30,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:39:30,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/458d4dfad/747aab6bd57f4ef5bafabcf12945048b/FLAGfa0fb84fa [2021-11-04 05:39:30,807 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 05:39:30,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:39:30,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/458d4dfad/747aab6bd57f4ef5bafabcf12945048b/FLAGfa0fb84fa [2021-11-04 05:39:31,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/458d4dfad/747aab6bd57f4ef5bafabcf12945048b [2021-11-04 05:39:31,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 05:39:31,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 05:39:31,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 05:39:31,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 05:39:31,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 05:39:31,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:39:31" (1/1) ... [2021-11-04 05:39:31,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c49ebf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:31, skipping insertion in model container [2021-11-04 05:39:31,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:39:31" (1/1) ... [2021-11-04 05:39:31,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 05:39:31,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 05:39:31,796 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2021-11-04 05:39:31,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:39:31,858 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 05:39:32,011 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2021-11-04 05:39:32,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:39:32,056 INFO L208 MainTranslator]: Completed translation [2021-11-04 05:39:32,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32 WrapperNode [2021-11-04 05:39:32,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 05:39:32,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 05:39:32,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 05:39:32,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 05:39:32,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 05:39:32,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 05:39:32,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 05:39:32,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 05:39:32,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 05:39:32,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 05:39:32,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 05:39:32,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 05:39:32,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (1/1) ... [2021-11-04 05:39:32,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:39:32,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:39:32,273 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) [2021-11-04 05:39:32,275 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 [2021-11-04 05:39:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 05:39:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 05:39:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 05:39:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 05:39:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 05:39:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 05:39:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 05:39:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 05:39:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 05:39:32,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 05:39:32,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 05:39:33,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 05:39:33,092 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-11-04 05:39:33,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:39:33 BoogieIcfgContainer [2021-11-04 05:39:33,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 05:39:33,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 05:39:33,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 05:39:33,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 05:39:33,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 05:39:31" (1/3) ... [2021-11-04 05:39:33,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77359b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:39:33, skipping insertion in model container [2021-11-04 05:39:33,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:39:32" (2/3) ... [2021-11-04 05:39:33,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77359b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:39:33, skipping insertion in model container [2021-11-04 05:39:33,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:39:33" (3/3) ... [2021-11-04 05:39:33,101 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:39:33,105 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 05:39:33,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-04 05:39:33,139 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 05:39:33,144 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 [2021-11-04 05:39:33,144 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-04 05:39:33,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 174 states have (on average 1.396551724137931) internal successors, (243), 178 states have internal predecessors, (243), 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) [2021-11-04 05:39:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-04 05:39:33,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:33,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:39:33,168 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:33,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:33,171 INFO L85 PathProgramCache]: Analyzing trace with hash -218290634, now seen corresponding path program 1 times [2021-11-04 05:39:33,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:33,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337816357] [2021-11-04 05:39:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:33,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:39:33,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:33,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337816357] [2021-11-04 05:39:33,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337816357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:33,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:33,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:39:33,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421584701] [2021-11-04 05:39:33,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:33,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 05:39:33,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:33,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 05:39:33,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 05:39:33,560 INFO L87 Difference]: Start difference. First operand has 179 states, 174 states have (on average 1.396551724137931) internal successors, (243), 178 states have internal predecessors, (243), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-11-04 05:39:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:33,894 INFO L93 Difference]: Finished difference Result 354 states and 481 transitions. [2021-11-04 05:39:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 05:39:33,897 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2021-11-04 05:39:33,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:33,906 INFO L225 Difference]: With dead ends: 354 [2021-11-04 05:39:33,906 INFO L226 Difference]: Without dead ends: 171 [2021-11-04 05:39:33,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 05:39:33,918 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 219.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.53ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 287.27ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:33,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 227 Unknown, 0 Unchecked, 1.53ms Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 287.27ms Time] [2021-11-04 05:39:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-04 05:39:33,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-11-04 05:39:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.311377245508982) internal successors, (219), 170 states have internal predecessors, (219), 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) [2021-11-04 05:39:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 219 transitions. [2021-11-04 05:39:33,975 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 219 transitions. Word has length 17 [2021-11-04 05:39:33,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:33,976 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 219 transitions. [2021-11-04 05:39:33,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-11-04 05:39:33,976 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 219 transitions. [2021-11-04 05:39:33,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-04 05:39:33,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:33,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:39:33,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 05:39:33,978 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:33,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1229407884, now seen corresponding path program 1 times [2021-11-04 05:39:33,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:33,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018108157] [2021-11-04 05:39:33,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:33,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:39:34,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:34,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018108157] [2021-11-04 05:39:34,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018108157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:34,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:34,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:39:34,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042386612] [2021-11-04 05:39:34,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:34,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:39:34,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:34,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:39:34,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:34,111 INFO L87 Difference]: Start difference. First operand 171 states and 219 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-04 05:39:34,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:34,710 INFO L93 Difference]: Finished difference Result 473 states and 616 transitions. [2021-11-04 05:39:34,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:39:34,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-04 05:39:34,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:34,712 INFO L225 Difference]: With dead ends: 473 [2021-11-04 05:39:34,713 INFO L226 Difference]: Without dead ends: 309 [2021-11-04 05:39:34,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:34,714 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 189 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 433.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.86ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 539.11ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:34,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 0 Invalid, 426 Unknown, 0 Unchecked, 5.86ms Time], IncrementalHoareTripleChecker [3 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 539.11ms Time] [2021-11-04 05:39:34,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-04 05:39:34,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-11-04 05:39:34,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 305 states have (on average 1.3147540983606558) internal successors, (401), 308 states have internal predecessors, (401), 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) [2021-11-04 05:39:34,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 401 transitions. [2021-11-04 05:39:34,735 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 401 transitions. Word has length 17 [2021-11-04 05:39:34,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:34,735 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 401 transitions. [2021-11-04 05:39:34,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-04 05:39:34,736 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 401 transitions. [2021-11-04 05:39:34,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-04 05:39:34,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:34,737 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] [2021-11-04 05:39:34,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 05:39:34,738 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:34,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:34,738 INFO L85 PathProgramCache]: Analyzing trace with hash 994747557, now seen corresponding path program 1 times [2021-11-04 05:39:34,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:34,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629976586] [2021-11-04 05:39:34,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:34,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:34,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:39:34,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:34,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629976586] [2021-11-04 05:39:34,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629976586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:34,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:34,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 05:39:34,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111070281] [2021-11-04 05:39:34,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:34,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 05:39:34,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:34,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 05:39:34,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:39:34,845 INFO L87 Difference]: Start difference. First operand 309 states and 401 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:39:35,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:35,603 INFO L93 Difference]: Finished difference Result 778 states and 1008 transitions. [2021-11-04 05:39:35,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 05:39:35,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-04 05:39:35,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:35,606 INFO L225 Difference]: With dead ends: 778 [2021-11-04 05:39:35,606 INFO L226 Difference]: Without dead ends: 476 [2021-11-04 05:39:35,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.40ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-04 05:39:35,609 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 627 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 556.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.43ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 703.36ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:35,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 0 Invalid, 894 Unknown, 0 Unchecked, 5.43ms Time], IncrementalHoareTripleChecker [7 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 703.36ms Time] [2021-11-04 05:39:35,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-11-04 05:39:35,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 312. [2021-11-04 05:39:35,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 308 states have (on average 1.3084415584415585) internal successors, (403), 311 states have internal predecessors, (403), 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) [2021-11-04 05:39:35,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 403 transitions. [2021-11-04 05:39:35,627 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 403 transitions. Word has length 29 [2021-11-04 05:39:35,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:35,627 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 403 transitions. [2021-11-04 05:39:35,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:39:35,628 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 403 transitions. [2021-11-04 05:39:35,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-04 05:39:35,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:35,629 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] [2021-11-04 05:39:35,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 05:39:35,630 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:35,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:35,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1525212377, now seen corresponding path program 1 times [2021-11-04 05:39:35,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:35,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128955798] [2021-11-04 05:39:35,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:35,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:39:35,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:35,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128955798] [2021-11-04 05:39:35,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128955798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:35,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:35,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:39:35,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526166804] [2021-11-04 05:39:35,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:35,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:39:35,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:35,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:39:35,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:35,693 INFO L87 Difference]: Start difference. First operand 312 states and 403 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:39:36,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:36,256 INFO L93 Difference]: Finished difference Result 911 states and 1186 transitions. [2021-11-04 05:39:36,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:39:36,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-04 05:39:36,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:36,259 INFO L225 Difference]: With dead ends: 911 [2021-11-04 05:39:36,259 INFO L226 Difference]: Without dead ends: 606 [2021-11-04 05:39:36,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:36,261 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 187 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 411.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.44ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 527.37ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:36,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 0 Invalid, 485 Unknown, 0 Unchecked, 1.44ms Time], IncrementalHoareTripleChecker [3 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 527.37ms Time] [2021-11-04 05:39:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-04 05:39:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2021-11-04 05:39:36,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 602 states have (on average 1.303986710963455) internal successors, (785), 605 states have internal predecessors, (785), 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) [2021-11-04 05:39:36,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 785 transitions. [2021-11-04 05:39:36,293 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 785 transitions. Word has length 29 [2021-11-04 05:39:36,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:36,294 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 785 transitions. [2021-11-04 05:39:36,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:39:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 785 transitions. [2021-11-04 05:39:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-04 05:39:36,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:36,295 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] [2021-11-04 05:39:36,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 05:39:36,296 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:36,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:36,296 INFO L85 PathProgramCache]: Analyzing trace with hash -36936870, now seen corresponding path program 1 times [2021-11-04 05:39:36,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:36,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883939099] [2021-11-04 05:39:36,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:36,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:36,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:39:36,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:36,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883939099] [2021-11-04 05:39:36,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883939099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:36,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:36,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:39:36,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334360033] [2021-11-04 05:39:36,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:36,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:39:36,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:36,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:39:36,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:36,351 INFO L87 Difference]: Start difference. First operand 606 states and 785 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:39:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:36,613 INFO L93 Difference]: Finished difference Result 606 states and 785 transitions. [2021-11-04 05:39:36,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:39:36,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-04 05:39:36,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:36,616 INFO L225 Difference]: With dead ends: 606 [2021-11-04 05:39:36,616 INFO L226 Difference]: Without dead ends: 604 [2021-11-04 05:39:36,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:36,618 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 234.44ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:36,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 0 Invalid, 217 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 234.44ms Time] [2021-11-04 05:39:36,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-11-04 05:39:36,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2021-11-04 05:39:36,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 601 states have (on average 1.302828618968386) internal successors, (783), 603 states have internal predecessors, (783), 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) [2021-11-04 05:39:36,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 783 transitions. [2021-11-04 05:39:36,677 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 783 transitions. Word has length 30 [2021-11-04 05:39:36,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:36,677 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 783 transitions. [2021-11-04 05:39:36,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:39:36,678 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 783 transitions. [2021-11-04 05:39:36,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-04 05:39:36,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:36,688 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] [2021-11-04 05:39:36,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 05:39:36,688 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:36,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1145036399, now seen corresponding path program 1 times [2021-11-04 05:39:36,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:36,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811893269] [2021-11-04 05:39:36,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:36,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:36,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:39:36,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:36,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811893269] [2021-11-04 05:39:36,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811893269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:36,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:36,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:39:36,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592495062] [2021-11-04 05:39:36,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:36,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:39:36,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:36,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:39:36,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:36,749 INFO L87 Difference]: Start difference. First operand 604 states and 783 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 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) [2021-11-04 05:39:37,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:37,029 INFO L93 Difference]: Finished difference Result 604 states and 783 transitions. [2021-11-04 05:39:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:39:37,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-04 05:39:37,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:37,032 INFO L225 Difference]: With dead ends: 604 [2021-11-04 05:39:37,033 INFO L226 Difference]: Without dead ends: 602 [2021-11-04 05:39:37,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:37,034 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 186 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 205.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 251.18ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:37,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 0 Invalid, 215 Unknown, 0 Unchecked, 0.61ms Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 251.18ms Time] [2021-11-04 05:39:37,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-11-04 05:39:37,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2021-11-04 05:39:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 600 states have (on average 1.3016666666666667) internal successors, (781), 601 states have internal predecessors, (781), 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) [2021-11-04 05:39:37,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 781 transitions. [2021-11-04 05:39:37,058 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 781 transitions. Word has length 31 [2021-11-04 05:39:37,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:37,059 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 781 transitions. [2021-11-04 05:39:37,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 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) [2021-11-04 05:39:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 781 transitions. [2021-11-04 05:39:37,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-04 05:39:37,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:37,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:39:37,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 05:39:37,061 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:37,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:37,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1136383420, now seen corresponding path program 1 times [2021-11-04 05:39:37,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:37,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935904049] [2021-11-04 05:39:37,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:37,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:37,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:39:37,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:37,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935904049] [2021-11-04 05:39:37,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935904049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:37,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:37,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:39:37,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330878445] [2021-11-04 05:39:37,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:37,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:39:37,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:39:37,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:37,113 INFO L87 Difference]: Start difference. First operand 602 states and 781 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:39:37,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:37,361 INFO L93 Difference]: Finished difference Result 602 states and 781 transitions. [2021-11-04 05:39:37,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:39:37,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-04 05:39:37,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:37,365 INFO L225 Difference]: With dead ends: 602 [2021-11-04 05:39:37,365 INFO L226 Difference]: Without dead ends: 594 [2021-11-04 05:39:37,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:37,367 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 183 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 183.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 223.21ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:37,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 0 Invalid, 213 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 223.21ms Time] [2021-11-04 05:39:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-11-04 05:39:37,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2021-11-04 05:39:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 593 states have (on average 1.300168634064081) internal successors, (771), 593 states have internal predecessors, (771), 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) [2021-11-04 05:39:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 771 transitions. [2021-11-04 05:39:37,415 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 771 transitions. Word has length 32 [2021-11-04 05:39:37,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:37,416 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 771 transitions. [2021-11-04 05:39:37,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:39:37,417 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 771 transitions. [2021-11-04 05:39:37,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-04 05:39:37,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:37,420 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:39:37,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 05:39:37,421 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:37,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1227674702, now seen corresponding path program 1 times [2021-11-04 05:39:37,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:37,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202733938] [2021-11-04 05:39:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:37,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:39:37,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:37,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202733938] [2021-11-04 05:39:37,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202733938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:37,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:37,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:39:37,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589925165] [2021-11-04 05:39:37,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:37,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:39:37,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:37,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:39:37,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:37,528 INFO L87 Difference]: Start difference. First operand 594 states and 771 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-04 05:39:37,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:37,877 INFO L93 Difference]: Finished difference Result 1239 states and 1617 transitions. [2021-11-04 05:39:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:39:37,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2021-11-04 05:39:37,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:37,881 INFO L225 Difference]: With dead ends: 1239 [2021-11-04 05:39:37,881 INFO L226 Difference]: Without dead ends: 652 [2021-11-04 05:39:37,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:37,882 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 260.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.04ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 315.58ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:37,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 417 Unknown, 0 Unchecked, 1.04ms Time], IncrementalHoareTripleChecker [3 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 315.58ms Time] [2021-11-04 05:39:37,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-04 05:39:37,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 644. [2021-11-04 05:39:37,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 1.3094867807153965) internal successors, (842), 643 states have internal predecessors, (842), 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) [2021-11-04 05:39:37,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 842 transitions. [2021-11-04 05:39:37,907 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 842 transitions. Word has length 84 [2021-11-04 05:39:37,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:37,908 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 842 transitions. [2021-11-04 05:39:37,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-04 05:39:37,908 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 842 transitions. [2021-11-04 05:39:37,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-04 05:39:37,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:37,910 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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] [2021-11-04 05:39:37,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 05:39:37,910 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:37,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:37,911 INFO L85 PathProgramCache]: Analyzing trace with hash -443790983, now seen corresponding path program 1 times [2021-11-04 05:39:37,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:37,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783673214] [2021-11-04 05:39:37,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:37,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:37,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:37,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783673214] [2021-11-04 05:39:37,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783673214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:37,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:37,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 05:39:37,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652896342] [2021-11-04 05:39:37,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:37,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 05:39:37,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:37,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 05:39:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:39:37,985 INFO L87 Difference]: Start difference. First operand 644 states and 842 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2021-11-04 05:39:38,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:38,809 INFO L93 Difference]: Finished difference Result 1968 states and 2608 transitions. [2021-11-04 05:39:38,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-04 05:39:38,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 92 [2021-11-04 05:39:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:38,814 INFO L225 Difference]: With dead ends: 1968 [2021-11-04 05:39:38,814 INFO L226 Difference]: Without dead ends: 1331 [2021-11-04 05:39:38,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.76ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-04 05:39:38,816 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 422 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 612.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.25ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 750.37ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:38,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 0 Invalid, 1129 Unknown, 0 Unchecked, 4.25ms Time], IncrementalHoareTripleChecker [2 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 750.37ms Time] [2021-11-04 05:39:38,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2021-11-04 05:39:38,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 656. [2021-11-04 05:39:38,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.3038167938931298) internal successors, (854), 655 states have internal predecessors, (854), 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) [2021-11-04 05:39:38,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 854 transitions. [2021-11-04 05:39:38,848 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 854 transitions. Word has length 92 [2021-11-04 05:39:38,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:38,848 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 854 transitions. [2021-11-04 05:39:38,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2021-11-04 05:39:38,849 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 854 transitions. [2021-11-04 05:39:38,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-04 05:39:38,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:38,850 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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] [2021-11-04 05:39:38,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 05:39:38,850 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:38,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:38,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1017407904, now seen corresponding path program 1 times [2021-11-04 05:39:38,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:38,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498412270] [2021-11-04 05:39:38,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:38,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:38,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:38,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498412270] [2021-11-04 05:39:38,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498412270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 05:39:38,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677042419] [2021-11-04 05:39:38,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:38,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 05:39:38,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:39:38,955 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) [2021-11-04 05:39:38,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 05:39:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:39,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-04 05:39:39,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 05:39:39,561 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:39,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 05:39:39,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677042419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:39,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-04 05:39:39,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-04 05:39:39,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008534841] [2021-11-04 05:39:39,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:39,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 05:39:39,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:39,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 05:39:39,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-04 05:39:39,564 INFO L87 Difference]: Start difference. First operand 656 states and 854 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2021-11-04 05:39:40,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:40,729 INFO L93 Difference]: Finished difference Result 2219 states and 2889 transitions. [2021-11-04 05:39:40,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-04 05:39:40,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 94 [2021-11-04 05:39:40,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:40,735 INFO L225 Difference]: With dead ends: 2219 [2021-11-04 05:39:40,736 INFO L226 Difference]: Without dead ends: 1570 [2021-11-04 05:39:40,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 42.40ms TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-04 05:39:40,737 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 349 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 853.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.38ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1058.18ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:40,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 0 Invalid, 1423 Unknown, 0 Unchecked, 4.38ms Time], IncrementalHoareTripleChecker [4 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 1058.18ms Time] [2021-11-04 05:39:40,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2021-11-04 05:39:40,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 684. [2021-11-04 05:39:40,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 683 states have (on average 1.2913616398243046) internal successors, (882), 683 states have internal predecessors, (882), 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) [2021-11-04 05:39:40,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 882 transitions. [2021-11-04 05:39:40,778 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 882 transitions. Word has length 94 [2021-11-04 05:39:40,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:40,778 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 882 transitions. [2021-11-04 05:39:40,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2021-11-04 05:39:40,779 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 882 transitions. [2021-11-04 05:39:40,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-04 05:39:40,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:40,780 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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] [2021-11-04 05:39:40,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-04 05:39:40,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-04 05:39:40,996 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:40,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:40,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1718472482, now seen corresponding path program 1 times [2021-11-04 05:39:40,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:40,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402171881] [2021-11-04 05:39:40,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:40,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:41,117 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:41,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:41,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402171881] [2021-11-04 05:39:41,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402171881] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:41,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:41,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 05:39:41,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959122164] [2021-11-04 05:39:41,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:41,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 05:39:41,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:41,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 05:39:41,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 05:39:41,120 INFO L87 Difference]: Start difference. First operand 684 states and 882 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2021-11-04 05:39:41,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:41,740 INFO L93 Difference]: Finished difference Result 1890 states and 2432 transitions. [2021-11-04 05:39:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 05:39:41,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 94 [2021-11-04 05:39:41,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:41,746 INFO L225 Difference]: With dead ends: 1890 [2021-11-04 05:39:41,746 INFO L226 Difference]: Without dead ends: 1213 [2021-11-04 05:39:41,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.56ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:39:41,748 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 149 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 452.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.08ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 554.31ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:41,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 0 Invalid, 758 Unknown, 0 Unchecked, 2.08ms Time], IncrementalHoareTripleChecker [5 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 554.31ms Time] [2021-11-04 05:39:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2021-11-04 05:39:41,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 692. [2021-11-04 05:39:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 691 states have (on average 1.2879884225759768) internal successors, (890), 691 states have internal predecessors, (890), 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) [2021-11-04 05:39:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 890 transitions. [2021-11-04 05:39:41,808 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 890 transitions. Word has length 94 [2021-11-04 05:39:41,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:41,809 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 890 transitions. [2021-11-04 05:39:41,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2021-11-04 05:39:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 890 transitions. [2021-11-04 05:39:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-04 05:39:41,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:41,811 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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] [2021-11-04 05:39:41,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-04 05:39:41,811 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:41,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:41,812 INFO L85 PathProgramCache]: Analyzing trace with hash 877065478, now seen corresponding path program 1 times [2021-11-04 05:39:41,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:41,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228521888] [2021-11-04 05:39:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:41,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:42,002 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:42,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:42,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228521888] [2021-11-04 05:39:42,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228521888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:42,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:42,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-04 05:39:42,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467946963] [2021-11-04 05:39:42,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:42,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-04 05:39:42,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:42,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-04 05:39:42,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-04 05:39:42,005 INFO L87 Difference]: Start difference. First operand 692 states and 890 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2021-11-04 05:39:43,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:43,541 INFO L93 Difference]: Finished difference Result 2492 states and 3214 transitions. [2021-11-04 05:39:43,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-04 05:39:43,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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 96 [2021-11-04 05:39:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:43,548 INFO L225 Difference]: With dead ends: 2492 [2021-11-04 05:39:43,548 INFO L226 Difference]: Without dead ends: 1807 [2021-11-04 05:39:43,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 157.50ms TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-04 05:39:43,551 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 992 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1037.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.10ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1261.89ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:43,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 0 Invalid, 2142 Unknown, 0 Unchecked, 9.10ms Time], IncrementalHoareTripleChecker [8 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 1261.89ms Time] [2021-11-04 05:39:43,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2021-11-04 05:39:43,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 716. [2021-11-04 05:39:43,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2783216783216784) internal successors, (914), 715 states have internal predecessors, (914), 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) [2021-11-04 05:39:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 914 transitions. [2021-11-04 05:39:43,605 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 914 transitions. Word has length 96 [2021-11-04 05:39:43,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:43,605 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 914 transitions. [2021-11-04 05:39:43,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2021-11-04 05:39:43,606 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 914 transitions. [2021-11-04 05:39:43,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-04 05:39:43,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:43,607 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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] [2021-11-04 05:39:43,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-04 05:39:43,608 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:43,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1460316022, now seen corresponding path program 1 times [2021-11-04 05:39:43,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:43,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705201076] [2021-11-04 05:39:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:43,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:43,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:43,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:43,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705201076] [2021-11-04 05:39:43,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705201076] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:43,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:43,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-04 05:39:43,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746492010] [2021-11-04 05:39:43,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:43,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-04 05:39:43,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:43,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-04 05:39:43,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-04 05:39:43,772 INFO L87 Difference]: Start difference. First operand 716 states and 914 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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) [2021-11-04 05:39:45,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:45,411 INFO L93 Difference]: Finished difference Result 2982 states and 3848 transitions. [2021-11-04 05:39:45,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-04 05:39:45,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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 98 [2021-11-04 05:39:45,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:45,420 INFO L225 Difference]: With dead ends: 2982 [2021-11-04 05:39:45,420 INFO L226 Difference]: Without dead ends: 2273 [2021-11-04 05:39:45,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 114.21ms TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-11-04 05:39:45,423 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1158 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 2014 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1110.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.72ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1342.43ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:45,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 0 Invalid, 2026 Unknown, 0 Unchecked, 8.72ms Time], IncrementalHoareTripleChecker [12 Valid, 2014 Invalid, 0 Unknown, 0 Unchecked, 1342.43ms Time] [2021-11-04 05:39:45,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-11-04 05:39:45,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 744. [2021-11-04 05:39:45,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 743 states have (on average 1.2732166890982504) internal successors, (946), 743 states have internal predecessors, (946), 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) [2021-11-04 05:39:45,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 946 transitions. [2021-11-04 05:39:45,489 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 946 transitions. Word has length 98 [2021-11-04 05:39:45,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:45,489 INFO L470 AbstractCegarLoop]: Abstraction has 744 states and 946 transitions. [2021-11-04 05:39:45,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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) [2021-11-04 05:39:45,490 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 946 transitions. [2021-11-04 05:39:45,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-04 05:39:45,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:45,493 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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, 1, 1] [2021-11-04 05:39:45,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-04 05:39:45,493 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:45,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:45,494 INFO L85 PathProgramCache]: Analyzing trace with hash -222859706, now seen corresponding path program 1 times [2021-11-04 05:39:45,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:45,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486897118] [2021-11-04 05:39:45,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:45,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:45,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:45,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486897118] [2021-11-04 05:39:45,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486897118] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:45,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:45,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 05:39:45,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841803419] [2021-11-04 05:39:45,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:45,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 05:39:45,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:45,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 05:39:45,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:39:45,628 INFO L87 Difference]: Start difference. First operand 744 states and 946 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2021-11-04 05:39:46,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:46,759 INFO L93 Difference]: Finished difference Result 2534 states and 3222 transitions. [2021-11-04 05:39:46,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-04 05:39:46,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 100 [2021-11-04 05:39:46,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:46,768 INFO L225 Difference]: With dead ends: 2534 [2021-11-04 05:39:46,768 INFO L226 Difference]: Without dead ends: 2163 [2021-11-04 05:39:46,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 42.42ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-04 05:39:46,770 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 756 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 782.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.39ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 947.00ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:46,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 0 Invalid, 1328 Unknown, 0 Unchecked, 3.39ms Time], IncrementalHoareTripleChecker [6 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 947.00ms Time] [2021-11-04 05:39:46,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2163 states. [2021-11-04 05:39:46,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2163 to 756. [2021-11-04 05:39:46,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 755 states have (on average 1.2688741721854304) internal successors, (958), 755 states have internal predecessors, (958), 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) [2021-11-04 05:39:46,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 958 transitions. [2021-11-04 05:39:46,835 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 958 transitions. Word has length 100 [2021-11-04 05:39:46,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:46,836 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 958 transitions. [2021-11-04 05:39:46,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2021-11-04 05:39:46,836 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 958 transitions. [2021-11-04 05:39:46,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-04 05:39:46,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:46,838 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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, 1, 1, 1, 1] [2021-11-04 05:39:46,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-04 05:39:46,838 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:46,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:46,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1656738494, now seen corresponding path program 1 times [2021-11-04 05:39:46,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:46,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466953003] [2021-11-04 05:39:46,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:46,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:46,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:46,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466953003] [2021-11-04 05:39:46,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466953003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:46,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:46,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 05:39:46,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218174693] [2021-11-04 05:39:46,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:46,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 05:39:46,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:46,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 05:39:46,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:39:46,961 INFO L87 Difference]: Start difference. First operand 756 states and 958 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2021-11-04 05:39:48,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:48,033 INFO L93 Difference]: Finished difference Result 2700 states and 3434 transitions. [2021-11-04 05:39:48,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-04 05:39:48,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 102 [2021-11-04 05:39:48,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:48,041 INFO L225 Difference]: With dead ends: 2700 [2021-11-04 05:39:48,041 INFO L226 Difference]: Without dead ends: 1951 [2021-11-04 05:39:48,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.15ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-04 05:39:48,046 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 347 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 730.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.78ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 889.36ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:48,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 0 Invalid, 1413 Unknown, 0 Unchecked, 2.78ms Time], IncrementalHoareTripleChecker [7 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 889.36ms Time] [2021-11-04 05:39:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2021-11-04 05:39:48,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 768. [2021-11-04 05:39:48,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 767 states have (on average 1.2646675358539765) internal successors, (970), 767 states have internal predecessors, (970), 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) [2021-11-04 05:39:48,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 970 transitions. [2021-11-04 05:39:48,121 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 970 transitions. Word has length 102 [2021-11-04 05:39:48,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:48,121 INFO L470 AbstractCegarLoop]: Abstraction has 768 states and 970 transitions. [2021-11-04 05:39:48,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2021-11-04 05:39:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 970 transitions. [2021-11-04 05:39:48,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-04 05:39:48,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:48,123 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2021-11-04 05:39:48,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-04 05:39:48,124 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:48,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1418219362, now seen corresponding path program 1 times [2021-11-04 05:39:48,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:48,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141361402] [2021-11-04 05:39:48,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:48,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:48,470 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:48,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:48,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141361402] [2021-11-04 05:39:48,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141361402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:48,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:48,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-04 05:39:48,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844333163] [2021-11-04 05:39:48,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:48,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-04 05:39:48,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:48,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-04 05:39:48,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-04 05:39:48,473 INFO L87 Difference]: Start difference. First operand 768 states and 970 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2021-11-04 05:39:51,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:51,523 INFO L93 Difference]: Finished difference Result 2610 states and 3322 transitions. [2021-11-04 05:39:51,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-04 05:39:51,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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 104 [2021-11-04 05:39:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:51,531 INFO L225 Difference]: With dead ends: 2610 [2021-11-04 05:39:51,531 INFO L226 Difference]: Without dead ends: 2227 [2021-11-04 05:39:51,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 230.53ms TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2021-11-04 05:39:51,532 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1254 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 3661 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2202.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.25ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2603.66ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:51,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 0 Invalid, 3680 Unknown, 0 Unchecked, 8.25ms Time], IncrementalHoareTripleChecker [19 Valid, 3661 Invalid, 0 Unknown, 0 Unchecked, 2603.66ms Time] [2021-11-04 05:39:51,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2021-11-04 05:39:51,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 774. [2021-11-04 05:39:51,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 773 states have (on average 1.2626131953428201) internal successors, (976), 773 states have internal predecessors, (976), 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) [2021-11-04 05:39:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 976 transitions. [2021-11-04 05:39:51,621 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 976 transitions. Word has length 104 [2021-11-04 05:39:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:51,622 INFO L470 AbstractCegarLoop]: Abstraction has 774 states and 976 transitions. [2021-11-04 05:39:51,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2021-11-04 05:39:51,622 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 976 transitions. [2021-11-04 05:39:51,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-04 05:39:51,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:51,624 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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, 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] [2021-11-04 05:39:51,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-04 05:39:51,624 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:51,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:51,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1114193399, now seen corresponding path program 1 times [2021-11-04 05:39:51,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:51,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509314492] [2021-11-04 05:39:51,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:51,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:51,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:51,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509314492] [2021-11-04 05:39:51,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509314492] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 05:39:51,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137697833] [2021-11-04 05:39:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:51,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 05:39:51,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:39:51,752 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) [2021-11-04 05:39:51,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-04 05:39:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:52,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-04 05:39:52,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 05:39:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:52,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 05:39:52,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137697833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:52,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-04 05:39:52,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-04 05:39:52,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634806941] [2021-11-04 05:39:52,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:52,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 05:39:52,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:52,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 05:39:52,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:39:52,385 INFO L87 Difference]: Start difference. First operand 774 states and 976 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2021-11-04 05:39:53,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:53,214 INFO L93 Difference]: Finished difference Result 2309 states and 2914 transitions. [2021-11-04 05:39:53,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 05:39:53,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 125 [2021-11-04 05:39:53,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:53,222 INFO L225 Difference]: With dead ends: 2309 [2021-11-04 05:39:53,222 INFO L226 Difference]: Without dead ends: 2304 [2021-11-04 05:39:53,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.63ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:39:53,224 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 295 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 520.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 638.03ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:53,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 0 Invalid, 821 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [4 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 638.03ms Time] [2021-11-04 05:39:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2021-11-04 05:39:53,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 2258. [2021-11-04 05:39:53,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2258 states, 2257 states have (on average 1.2662826761187418) internal successors, (2858), 2257 states have internal predecessors, (2858), 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) [2021-11-04 05:39:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 2858 transitions. [2021-11-04 05:39:53,464 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 2858 transitions. Word has length 125 [2021-11-04 05:39:53,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:53,465 INFO L470 AbstractCegarLoop]: Abstraction has 2258 states and 2858 transitions. [2021-11-04 05:39:53,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2021-11-04 05:39:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 2858 transitions. [2021-11-04 05:39:53,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-04 05:39:53,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:53,468 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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, 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] [2021-11-04 05:39:53,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-04 05:39:53,683 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,SelfDestructingSolverStorable16 [2021-11-04 05:39:53,684 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:53,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:53,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1815257977, now seen corresponding path program 1 times [2021-11-04 05:39:53,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:53,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165353853] [2021-11-04 05:39:53,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:53,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:53,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:53,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165353853] [2021-11-04 05:39:53,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165353853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:53,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:53,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 05:39:53,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112622014] [2021-11-04 05:39:53,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:53,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 05:39:53,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:53,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 05:39:53,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 05:39:53,778 INFO L87 Difference]: Start difference. First operand 2258 states and 2858 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2021-11-04 05:39:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:54,709 INFO L93 Difference]: Finished difference Result 7337 states and 9347 transitions. [2021-11-04 05:39:54,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 05:39:54,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 125 [2021-11-04 05:39:54,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:54,725 INFO L225 Difference]: With dead ends: 7337 [2021-11-04 05:39:54,725 INFO L226 Difference]: Without dead ends: 5086 [2021-11-04 05:39:54,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.49ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:39:54,731 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 278 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 404.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.11ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 521.89ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:54,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 0 Invalid, 692 Unknown, 0 Unchecked, 1.11ms Time], IncrementalHoareTripleChecker [3 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 521.89ms Time] [2021-11-04 05:39:54,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2021-11-04 05:39:55,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 2270. [2021-11-04 05:39:55,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2270 states, 2269 states have (on average 1.2648743940061702) internal successors, (2870), 2269 states have internal predecessors, (2870), 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) [2021-11-04 05:39:55,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2870 transitions. [2021-11-04 05:39:55,010 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2870 transitions. Word has length 125 [2021-11-04 05:39:55,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:55,011 INFO L470 AbstractCegarLoop]: Abstraction has 2270 states and 2870 transitions. [2021-11-04 05:39:55,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2021-11-04 05:39:55,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2870 transitions. [2021-11-04 05:39:55,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-04 05:39:55,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:55,014 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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, 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] [2021-11-04 05:39:55,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-04 05:39:55,015 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:55,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2113835711, now seen corresponding path program 1 times [2021-11-04 05:39:55,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:55,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009337916] [2021-11-04 05:39:55,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:55,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:55,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:55,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009337916] [2021-11-04 05:39:55,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009337916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:55,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:55,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 05:39:55,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91770499] [2021-11-04 05:39:55,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:55,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 05:39:55,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:55,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 05:39:55,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 05:39:55,129 INFO L87 Difference]: Start difference. First operand 2270 states and 2870 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-11-04 05:39:55,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:55,912 INFO L93 Difference]: Finished difference Result 5674 states and 7204 transitions. [2021-11-04 05:39:55,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 05:39:55,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 129 [2021-11-04 05:39:55,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:55,923 INFO L225 Difference]: With dead ends: 5674 [2021-11-04 05:39:55,924 INFO L226 Difference]: Without dead ends: 3387 [2021-11-04 05:39:55,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.20ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:39:55,927 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 129 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 400.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 486.87ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:55,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 0 Invalid, 762 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [5 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 486.87ms Time] [2021-11-04 05:39:55,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2021-11-04 05:39:56,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 2270. [2021-11-04 05:39:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2270 states, 2269 states have (on average 1.259585720581754) internal successors, (2858), 2269 states have internal predecessors, (2858), 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) [2021-11-04 05:39:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2858 transitions. [2021-11-04 05:39:56,144 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2858 transitions. Word has length 129 [2021-11-04 05:39:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:56,145 INFO L470 AbstractCegarLoop]: Abstraction has 2270 states and 2858 transitions. [2021-11-04 05:39:56,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-11-04 05:39:56,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2858 transitions. [2021-11-04 05:39:56,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-04 05:39:56,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:56,148 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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, 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, 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, 1, 1] [2021-11-04 05:39:56,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-04 05:39:56,149 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:56,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:56,149 INFO L85 PathProgramCache]: Analyzing trace with hash -199931299, now seen corresponding path program 1 times [2021-11-04 05:39:56,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:56,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018760992] [2021-11-04 05:39:56,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:56,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:39:57,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:57,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018760992] [2021-11-04 05:39:57,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018760992] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 05:39:57,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135249043] [2021-11-04 05:39:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:57,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 05:39:57,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:39:57,452 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) [2021-11-04 05:39:57,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-04 05:39:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:57,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 113 conjunts are in the unsatisfiable core [2021-11-04 05:39:57,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 05:39:57,866 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 7 treesize of output 6 [2021-11-04 05:39:57,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-04 05:39:58,180 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-04 05:39:58,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 34 [2021-11-04 05:39:58,191 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-04 05:39:58,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-04 05:39:58,653 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-04 05:39:58,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 43 [2021-11-04 05:39:59,573 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-04 05:39:59,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 59 [2021-11-04 05:40:00,248 INFO L354 Elim1Store]: treesize reduction 40, result has 29.8 percent of original size [2021-11-04 05:40:00,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 44 treesize of output 50 [2021-11-04 05:40:15,221 INFO L354 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2021-11-04 05:40:15,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 51 [2021-11-04 05:40:15,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2021-11-04 05:40:15,552 INFO L354 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2021-11-04 05:40:15,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 51 [2021-11-04 05:40:15,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2021-11-04 05:40:15,621 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-04 05:40:15,622 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 5 case distinctions, treesize of input 65 treesize of output 68 [2021-11-04 05:40:15,632 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-04 05:40:15,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 50 [2021-11-04 05:40:24,442 WARN L210 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 1000 DAG size of output: 390 [2021-11-04 05:40:24,443 INFO L354 Elim1Store]: treesize reduction 6824, result has 10.2 percent of original size [2021-11-04 05:40:24,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 77 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 81 new quantified variables, introduced 159 case distinctions, treesize of input 17871223 treesize of output 7458945 [2021-11-04 05:40:43,705 WARN L210 SmtUtils]: Spent 19.26s on a formula simplification that was a NOOP. DAG size: 2503 [2021-11-04 05:41:03,111 WARN L210 SmtUtils]: Spent 19.37s on a formula simplification that was a NOOP. DAG size: 2497 [2021-11-04 05:42:33,048 WARN L210 SmtUtils]: Spent 1.43m on a formula simplification. DAG size of input: 3231 DAG size of output: 1110 [2021-11-04 05:42:33,051 INFO L354 Elim1Store]: treesize reduction 32874, result has 15.5 percent of original size [2021-11-04 05:42:33,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 77 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 385 case distinctions, treesize of input 7459546 treesize of output 7463579 [2021-11-04 05:42:52,162 WARN L210 SmtUtils]: Spent 19.10s on a formula simplification that was a NOOP. DAG size: 3407 [2021-11-04 05:43:11,582 WARN L210 SmtUtils]: Spent 19.15s on a formula simplification that was a NOOP. DAG size: 3403 [2021-11-04 05:47:08,413 WARN L210 SmtUtils]: Spent 3.44m on a formula simplification. DAG size of input: 1809 DAG size of output: 1809 [2021-11-04 05:49:17,641 WARN L210 SmtUtils]: Spent 19.10s on a formula simplification that was a NOOP. DAG size: 1788 [2021-11-04 05:50:12,925 WARN L210 SmtUtils]: Spent 9.29s on a formula simplification that was a NOOP. DAG size: 1779 [2021-11-04 05:50:31,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 73 [2021-11-04 05:50:31,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:50:31,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 40 [2021-11-04 05:51:46,601 WARN L210 SmtUtils]: Spent 18.87s on a formula simplification that was a NOOP. DAG size: 1788 [2021-11-04 05:52:43,201 WARN L210 SmtUtils]: Spent 9.53s on a formula simplification that was a NOOP. DAG size: 1779 [2021-11-04 05:53:02,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 73 [2021-11-04 05:53:02,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 05:53:02,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 40 Killed by 15