./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.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 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 16:36:30,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 16:36:31,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 16:36:31,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 16:36:31,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 16:36:31,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 16:36:31,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 16:36:31,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 16:36:31,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 16:36:31,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 16:36:31,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 16:36:31,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 16:36:31,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 16:36:31,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 16:36:31,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 16:36:31,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 16:36:31,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 16:36:31,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 16:36:31,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 16:36:31,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 16:36:31,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 16:36:31,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 16:36:31,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 16:36:31,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 16:36:31,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 16:36:31,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 16:36:31,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 16:36:31,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 16:36:31,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 16:36:31,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 16:36:31,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 16:36:31,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 16:36:31,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 16:36:31,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 16:36:31,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 16:36:31,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 16:36:31,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 16:36:31,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 16:36:31,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 16:36:31,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 16:36:31,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 16:36:31,072 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 16:36:31,096 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 16:36:31,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 16:36:31,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 16:36:31,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 16:36:31,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 16:36:31,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 16:36:31,101 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 16:36:31,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 16:36:31,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 16:36:31,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 16:36:31,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 16:36:31,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 16:36:31,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 16:36:31,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 16:36:31,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 16:36:31,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 16:36:31,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 16:36:31,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 16:36:31,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 16:36:31,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:36:31,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 16:36:31,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 16:36:31,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 16:36:31,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 16:36:31,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 16:36:31,104 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 16:36:31,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 16:36:31,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 16:36:31,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 16:36:31,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2021-11-06 16:36:31,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 16:36:31,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 16:36:31,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 16:36:31,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 16:36:31,329 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 16:36:31,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-11-06 16:36:31,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5986805c6/5dfc896f9f61447dae548327dea8ba94/FLAGf108ed5eb [2021-11-06 16:36:31,912 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 16:36:31,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-11-06 16:36:31,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5986805c6/5dfc896f9f61447dae548327dea8ba94/FLAGf108ed5eb [2021-11-06 16:36:32,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5986805c6/5dfc896f9f61447dae548327dea8ba94 [2021-11-06 16:36:32,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 16:36:32,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 16:36:32,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 16:36:32,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 16:36:32,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 16:36:32,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:36:32" (1/1) ... [2021-11-06 16:36:32,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b15b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:32, skipping insertion in model container [2021-11-06 16:36:32,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:36:32" (1/1) ... [2021-11-06 16:36:32,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 16:36:32,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 16:36:33,284 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2021-11-06 16:36:33,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:36:33,403 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 16:36:33,651 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2021-11-06 16:36:33,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:36:33,712 INFO L208 MainTranslator]: Completed translation [2021-11-06 16:36:33,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33 WrapperNode [2021-11-06 16:36:33,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 16:36:33,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 16:36:33,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 16:36:33,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 16:36:33,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:33,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:34,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 16:36:34,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 16:36:34,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 16:36:34,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 16:36:34,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:34,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:34,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:34,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:34,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:34,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:34,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:35,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 16:36:35,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 16:36:35,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 16:36:35,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 16:36:35,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (1/1) ... [2021-11-06 16:36:35,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:36:35,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:36:35,035 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) [2021-11-06 16:36:35,055 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 [2021-11-06 16:36:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 16:36:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 16:36:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 16:36:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 16:36:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 16:36:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 16:36:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 16:36:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 16:36:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 16:36:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-06 16:36:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 16:36:35,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 16:37:24,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 16:37:24,219 INFO L299 CfgBuilder]: Removed 4216 assume(true) statements. [2021-11-06 16:37:24,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:37:24 BoogieIcfgContainer [2021-11-06 16:37:24,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 16:37:24,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 16:37:24,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 16:37:24,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 16:37:24,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:36:32" (1/3) ... [2021-11-06 16:37:24,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e07827a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:37:24, skipping insertion in model container [2021-11-06 16:37:24,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:36:33" (2/3) ... [2021-11-06 16:37:24,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e07827a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:37:24, skipping insertion in model container [2021-11-06 16:37:24,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:37:24" (3/3) ... [2021-11-06 16:37:24,228 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-11-06 16:37:24,231 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 16:37:24,231 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 115 error locations. [2021-11-06 16:37:24,267 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 16:37:24,270 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 [2021-11-06 16:37:24,271 INFO L340 AbstractCegarLoop]: Starting to check reachability of 115 error locations. [2021-11-06 16:37:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 5031 states, 4915 states have (on average 1.442319430315361) internal successors, (7089), 5030 states have internal predecessors, (7089), 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) [2021-11-06 16:37:24,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-06 16:37:24,315 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:24,315 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:24,316 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:24,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:24,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2040343940, now seen corresponding path program 1 times [2021-11-06 16:37:24,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:24,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235368701] [2021-11-06 16:37:24,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:24,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:24,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:24,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235368701] [2021-11-06 16:37:24,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235368701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:24,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:24,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:37:24,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056089944] [2021-11-06 16:37:24,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 16:37:24,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:24,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 16:37:24,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:37:24,686 INFO L87 Difference]: Start difference. First operand has 5031 states, 4915 states have (on average 1.442319430315361) internal successors, (7089), 5030 states have internal predecessors, (7089), 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 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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) [2021-11-06 16:37:24,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:24,788 INFO L93 Difference]: Finished difference Result 10058 states and 14173 transitions. [2021-11-06 16:37:24,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 16:37:24,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2021-11-06 16:37:24,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:24,812 INFO L225 Difference]: With dead ends: 10058 [2021-11-06 16:37:24,812 INFO L226 Difference]: Without dead ends: 5008 [2021-11-06 16:37:24,821 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:37:24,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2021-11-06 16:37:24,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 5008. [2021-11-06 16:37:24,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5008 states, 4893 states have (on average 1.3850398528510117) internal successors, (6777), 5007 states have internal predecessors, (6777), 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) [2021-11-06 16:37:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 6777 transitions. [2021-11-06 16:37:24,927 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 6777 transitions. Word has length 40 [2021-11-06 16:37:24,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:24,927 INFO L470 AbstractCegarLoop]: Abstraction has 5008 states and 6777 transitions. [2021-11-06 16:37:24,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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) [2021-11-06 16:37:24,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 6777 transitions. [2021-11-06 16:37:24,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-06 16:37:24,929 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:24,929 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:24,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 16:37:24,932 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:24,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1380812418, now seen corresponding path program 1 times [2021-11-06 16:37:24,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:24,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84691682] [2021-11-06 16:37:24,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:24,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:25,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:25,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84691682] [2021-11-06 16:37:25,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84691682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:25,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:25,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:37:25,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028802137] [2021-11-06 16:37:25,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:25,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:25,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:25,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:25,162 INFO L87 Difference]: Start difference. First operand 5008 states and 6777 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-06 16:37:25,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:25,386 INFO L93 Difference]: Finished difference Result 10045 states and 13592 transitions. [2021-11-06 16:37:25,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:25,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2021-11-06 16:37:25,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:25,399 INFO L225 Difference]: With dead ends: 10045 [2021-11-06 16:37:25,399 INFO L226 Difference]: Without dead ends: 5068 [2021-11-06 16:37:25,405 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5068 states. [2021-11-06 16:37:25,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5068 to 5050. [2021-11-06 16:37:25,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5050 states, 4935 states have (on average 1.3852077001013172) internal successors, (6836), 5049 states have internal predecessors, (6836), 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) [2021-11-06 16:37:25,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5050 states to 5050 states and 6836 transitions. [2021-11-06 16:37:25,476 INFO L78 Accepts]: Start accepts. Automaton has 5050 states and 6836 transitions. Word has length 40 [2021-11-06 16:37:25,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:25,477 INFO L470 AbstractCegarLoop]: Abstraction has 5050 states and 6836 transitions. [2021-11-06 16:37:25,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-06 16:37:25,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5050 states and 6836 transitions. [2021-11-06 16:37:25,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-06 16:37:25,478 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:25,478 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:25,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 16:37:25,479 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr110ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:25,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:25,479 INFO L85 PathProgramCache]: Analyzing trace with hash -725601531, now seen corresponding path program 1 times [2021-11-06 16:37:25,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:25,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680895601] [2021-11-06 16:37:25,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:25,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:25,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:25,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:25,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680895601] [2021-11-06 16:37:25,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680895601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:25,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:25,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:37:25,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360053756] [2021-11-06 16:37:25,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:25,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:25,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:25,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:25,626 INFO L87 Difference]: Start difference. First operand 5050 states and 6836 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-06 16:37:27,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:27,981 INFO L93 Difference]: Finished difference Result 15018 states and 20354 transitions. [2021-11-06 16:37:27,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:27,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2021-11-06 16:37:27,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:28,007 INFO L225 Difference]: With dead ends: 15018 [2021-11-06 16:37:28,008 INFO L226 Difference]: Without dead ends: 9999 [2021-11-06 16:37:28,015 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:28,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2021-11-06 16:37:28,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 9778. [2021-11-06 16:37:28,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9778 states, 9663 states have (on average 1.390872399875815) internal successors, (13440), 9777 states have internal predecessors, (13440), 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) [2021-11-06 16:37:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9778 states to 9778 states and 13440 transitions. [2021-11-06 16:37:28,168 INFO L78 Accepts]: Start accepts. Automaton has 9778 states and 13440 transitions. Word has length 46 [2021-11-06 16:37:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:28,168 INFO L470 AbstractCegarLoop]: Abstraction has 9778 states and 13440 transitions. [2021-11-06 16:37:28,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-06 16:37:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 9778 states and 13440 transitions. [2021-11-06 16:37:28,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 16:37:28,169 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:28,170 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:28,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 16:37:28,170 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr110ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:28,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:28,170 INFO L85 PathProgramCache]: Analyzing trace with hash -41623059, now seen corresponding path program 1 times [2021-11-06 16:37:28,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:28,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482220018] [2021-11-06 16:37:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:28,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:28,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:28,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:28,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482220018] [2021-11-06 16:37:28,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482220018] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:28,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:28,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:37:28,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449704883] [2021-11-06 16:37:28,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:28,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:28,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:28,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:28,321 INFO L87 Difference]: Start difference. First operand 9778 states and 13440 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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) [2021-11-06 16:37:28,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:28,409 INFO L93 Difference]: Finished difference Result 9778 states and 13440 transitions. [2021-11-06 16:37:28,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:28,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2021-11-06 16:37:28,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:28,434 INFO L225 Difference]: With dead ends: 9778 [2021-11-06 16:37:28,435 INFO L226 Difference]: Without dead ends: 9776 [2021-11-06 16:37:28,437 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9776 states. [2021-11-06 16:37:28,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9776 to 9776. [2021-11-06 16:37:28,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9776 states, 9662 states have (on average 1.3908093562409438) internal successors, (13438), 9775 states have internal predecessors, (13438), 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) [2021-11-06 16:37:28,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9776 states to 9776 states and 13438 transitions. [2021-11-06 16:37:28,597 INFO L78 Accepts]: Start accepts. Automaton has 9776 states and 13438 transitions. Word has length 58 [2021-11-06 16:37:28,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:28,597 INFO L470 AbstractCegarLoop]: Abstraction has 9776 states and 13438 transitions. [2021-11-06 16:37:28,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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) [2021-11-06 16:37:28,598 INFO L276 IsEmpty]: Start isEmpty. Operand 9776 states and 13438 transitions. [2021-11-06 16:37:28,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-06 16:37:28,598 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:28,599 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:28,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 16:37:28,599 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr111ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:28,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:28,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1290291991, now seen corresponding path program 1 times [2021-11-06 16:37:28,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:28,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953162951] [2021-11-06 16:37:28,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:28,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:28,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:28,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:28,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953162951] [2021-11-06 16:37:28,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953162951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:28,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:28,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:37:28,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185920438] [2021-11-06 16:37:28,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:28,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:28,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:28,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:28,735 INFO L87 Difference]: Start difference. First operand 9776 states and 13438 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:29,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:29,038 INFO L93 Difference]: Finished difference Result 9776 states and 13438 transitions. [2021-11-06 16:37:29,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:29,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-06 16:37:29,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:29,053 INFO L225 Difference]: With dead ends: 9776 [2021-11-06 16:37:29,054 INFO L226 Difference]: Without dead ends: 9774 [2021-11-06 16:37:29,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:29,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2021-11-06 16:37:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 9774. [2021-11-06 16:37:29,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9774 states, 9661 states have (on average 1.3907462995549116) internal successors, (13436), 9773 states have internal predecessors, (13436), 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) [2021-11-06 16:37:29,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9774 states to 9774 states and 13436 transitions. [2021-11-06 16:37:29,248 INFO L78 Accepts]: Start accepts. Automaton has 9774 states and 13436 transitions. Word has length 59 [2021-11-06 16:37:29,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:29,250 INFO L470 AbstractCegarLoop]: Abstraction has 9774 states and 13436 transitions. [2021-11-06 16:37:29,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:29,250 INFO L276 IsEmpty]: Start isEmpty. Operand 9774 states and 13436 transitions. [2021-11-06 16:37:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-06 16:37:29,252 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:29,252 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:29,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 16:37:29,253 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr112ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:29,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:29,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1344323209, now seen corresponding path program 1 times [2021-11-06 16:37:29,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:29,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031144145] [2021-11-06 16:37:29,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:29,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:29,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:29,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:29,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031144145] [2021-11-06 16:37:29,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031144145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:29,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:29,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:37:29,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108939296] [2021-11-06 16:37:29,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:29,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:29,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:29,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:29,422 INFO L87 Difference]: Start difference. First operand 9774 states and 13436 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:29,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:29,603 INFO L93 Difference]: Finished difference Result 9774 states and 13436 transitions. [2021-11-06 16:37:29,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:29,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-06 16:37:29,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:29,619 INFO L225 Difference]: With dead ends: 9774 [2021-11-06 16:37:29,619 INFO L226 Difference]: Without dead ends: 9764 [2021-11-06 16:37:29,622 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:29,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9764 states. [2021-11-06 16:37:29,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9764 to 9764. [2021-11-06 16:37:29,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9764 states, 9656 states have (on average 1.390016570008285) internal successors, (13422), 9763 states have internal predecessors, (13422), 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) [2021-11-06 16:37:29,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9764 states to 9764 states and 13422 transitions. [2021-11-06 16:37:29,811 INFO L78 Accepts]: Start accepts. Automaton has 9764 states and 13422 transitions. Word has length 60 [2021-11-06 16:37:29,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:29,811 INFO L470 AbstractCegarLoop]: Abstraction has 9764 states and 13422 transitions. [2021-11-06 16:37:29,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:29,811 INFO L276 IsEmpty]: Start isEmpty. Operand 9764 states and 13422 transitions. [2021-11-06 16:37:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-06 16:37:29,812 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:29,813 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:29,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 16:37:29,813 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:29,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1275676339, now seen corresponding path program 1 times [2021-11-06 16:37:29,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:29,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703632222] [2021-11-06 16:37:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:29,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:29,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:29,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703632222] [2021-11-06 16:37:29,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703632222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:29,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:29,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:37:29,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141167914] [2021-11-06 16:37:29,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:29,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:29,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:29,986 INFO L87 Difference]: Start difference. First operand 9764 states and 13422 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:31,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:31,229 INFO L93 Difference]: Finished difference Result 25387 states and 34986 transitions. [2021-11-06 16:37:31,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:31,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-06 16:37:31,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:31,255 INFO L225 Difference]: With dead ends: 25387 [2021-11-06 16:37:31,256 INFO L226 Difference]: Without dead ends: 15654 [2021-11-06 16:37:31,271 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:31,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15654 states. [2021-11-06 16:37:31,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15654 to 12221. [2021-11-06 16:37:31,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12221 states, 12113 states have (on average 1.3832246346900026) internal successors, (16755), 12220 states have internal predecessors, (16755), 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) [2021-11-06 16:37:31,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12221 states to 12221 states and 16755 transitions. [2021-11-06 16:37:31,488 INFO L78 Accepts]: Start accepts. Automaton has 12221 states and 16755 transitions. Word has length 61 [2021-11-06 16:37:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:31,489 INFO L470 AbstractCegarLoop]: Abstraction has 12221 states and 16755 transitions. [2021-11-06 16:37:31,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 12221 states and 16755 transitions. [2021-11-06 16:37:31,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-06 16:37:31,490 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:31,490 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:31,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 16:37:31,491 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr114ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:31,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:31,492 INFO L85 PathProgramCache]: Analyzing trace with hash 891283713, now seen corresponding path program 1 times [2021-11-06 16:37:31,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:31,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788484466] [2021-11-06 16:37:31,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:31,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:31,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:31,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788484466] [2021-11-06 16:37:31,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788484466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:31,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:31,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:37:31,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25731771] [2021-11-06 16:37:31,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:31,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:31,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:31,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:31,648 INFO L87 Difference]: Start difference. First operand 12221 states and 16755 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:31,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:31,755 INFO L93 Difference]: Finished difference Result 12221 states and 16755 transitions. [2021-11-06 16:37:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:31,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-06 16:37:31,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:31,773 INFO L225 Difference]: With dead ends: 12221 [2021-11-06 16:37:31,773 INFO L226 Difference]: Without dead ends: 12207 [2021-11-06 16:37:31,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:31,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12207 states. [2021-11-06 16:37:32,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12207 to 12207. [2021-11-06 16:37:32,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12207 states, 12100 states have (on average 1.3830578512396694) internal successors, (16735), 12206 states have internal predecessors, (16735), 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) [2021-11-06 16:37:32,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12207 states to 12207 states and 16735 transitions. [2021-11-06 16:37:32,069 INFO L78 Accepts]: Start accepts. Automaton has 12207 states and 16735 transitions. Word has length 62 [2021-11-06 16:37:32,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:32,069 INFO L470 AbstractCegarLoop]: Abstraction has 12207 states and 16735 transitions. [2021-11-06 16:37:32,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:32,069 INFO L276 IsEmpty]: Start isEmpty. Operand 12207 states and 16735 transitions. [2021-11-06 16:37:32,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-06 16:37:32,070 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:32,070 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:32,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 16:37:32,071 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:32,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:32,071 INFO L85 PathProgramCache]: Analyzing trace with hash -876422246, now seen corresponding path program 1 times [2021-11-06 16:37:32,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:32,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67185074] [2021-11-06 16:37:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:32,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:32,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:32,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67185074] [2021-11-06 16:37:32,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67185074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:32,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:32,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:37:32,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050664819] [2021-11-06 16:37:32,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:32,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:32,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:32,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:32,208 INFO L87 Difference]: Start difference. First operand 12207 states and 16735 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-06 16:37:34,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:34,487 INFO L93 Difference]: Finished difference Result 20195 states and 27621 transitions. [2021-11-06 16:37:34,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:34,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-06 16:37:34,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:34,501 INFO L225 Difference]: With dead ends: 20195 [2021-11-06 16:37:34,502 INFO L226 Difference]: Without dead ends: 8017 [2021-11-06 16:37:34,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:34,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2021-11-06 16:37:34,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 8010. [2021-11-06 16:37:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8010 states, 7903 states have (on average 1.3808680248007086) internal successors, (10913), 8009 states have internal predecessors, (10913), 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) [2021-11-06 16:37:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8010 states to 8010 states and 10913 transitions. [2021-11-06 16:37:34,632 INFO L78 Accepts]: Start accepts. Automaton has 8010 states and 10913 transitions. Word has length 72 [2021-11-06 16:37:34,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:34,632 INFO L470 AbstractCegarLoop]: Abstraction has 8010 states and 10913 transitions. [2021-11-06 16:37:34,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-06 16:37:34,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8010 states and 10913 transitions. [2021-11-06 16:37:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-06 16:37:34,637 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:34,637 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:34,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 16:37:34,637 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:34,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:34,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1524215360, now seen corresponding path program 1 times [2021-11-06 16:37:34,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:34,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508049141] [2021-11-06 16:37:34,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:34,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 16:37:34,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:34,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508049141] [2021-11-06 16:37:34,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508049141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:34,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:34,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:37:34,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4621606] [2021-11-06 16:37:34,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:34,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:34,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:34,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:34,777 INFO L87 Difference]: Start difference. First operand 8010 states and 10913 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-06 16:37:37,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:37,114 INFO L93 Difference]: Finished difference Result 8010 states and 10913 transitions. [2021-11-06 16:37:37,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:37,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 74 [2021-11-06 16:37:37,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:37,125 INFO L225 Difference]: With dead ends: 8010 [2021-11-06 16:37:37,125 INFO L226 Difference]: Without dead ends: 8002 [2021-11-06 16:37:37,126 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:37,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8002 states. [2021-11-06 16:37:37,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8002 to 8002. [2021-11-06 16:37:37,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8002 states, 7899 states have (on average 1.3800481073553614) internal successors, (10901), 8001 states have internal predecessors, (10901), 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) [2021-11-06 16:37:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8002 states to 8002 states and 10901 transitions. [2021-11-06 16:37:37,242 INFO L78 Accepts]: Start accepts. Automaton has 8002 states and 10901 transitions. Word has length 74 [2021-11-06 16:37:37,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:37,243 INFO L470 AbstractCegarLoop]: Abstraction has 8002 states and 10901 transitions. [2021-11-06 16:37:37,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-06 16:37:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 8002 states and 10901 transitions. [2021-11-06 16:37:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-06 16:37:37,244 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:37,245 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:37,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 16:37:37,245 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:37,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:37,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2115724415, now seen corresponding path program 1 times [2021-11-06 16:37:37,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:37,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390617000] [2021-11-06 16:37:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:37,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:37:37,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:37,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390617000] [2021-11-06 16:37:37,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390617000] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:37,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:37,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 16:37:37,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855547658] [2021-11-06 16:37:37,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 16:37:37,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:37,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 16:37:37,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 16:37:37,521 INFO L87 Difference]: Start difference. First operand 8002 states and 10901 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2021-11-06 16:37:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:42,705 INFO L93 Difference]: Finished difference Result 16219 states and 22116 transitions. [2021-11-06 16:37:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 16:37:42,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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 109 [2021-11-06 16:37:42,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:42,717 INFO L225 Difference]: With dead ends: 16219 [2021-11-06 16:37:42,717 INFO L226 Difference]: Without dead ends: 8277 [2021-11-06 16:37:42,725 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-06 16:37:42,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2021-11-06 16:37:42,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 8178. [2021-11-06 16:37:42,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8178 states, 8075 states have (on average 1.3821671826625388) internal successors, (11161), 8177 states have internal predecessors, (11161), 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) [2021-11-06 16:37:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8178 states to 8178 states and 11161 transitions. [2021-11-06 16:37:42,858 INFO L78 Accepts]: Start accepts. Automaton has 8178 states and 11161 transitions. Word has length 109 [2021-11-06 16:37:42,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:42,858 INFO L470 AbstractCegarLoop]: Abstraction has 8178 states and 11161 transitions. [2021-11-06 16:37:42,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2021-11-06 16:37:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 8178 states and 11161 transitions. [2021-11-06 16:37:42,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-06 16:37:42,860 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:42,861 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:42,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 16:37:42,861 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:42,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:42,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1696076644, now seen corresponding path program 1 times [2021-11-06 16:37:42,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:42,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713979616] [2021-11-06 16:37:42,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:42,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:42,999 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-06 16:37:42,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:42,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713979616] [2021-11-06 16:37:42,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713979616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:43,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:43,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:37:43,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810004533] [2021-11-06 16:37:43,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:43,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:43,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:43,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:43,001 INFO L87 Difference]: Start difference. First operand 8178 states and 11161 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-06 16:37:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:43,164 INFO L93 Difference]: Finished difference Result 16300 states and 22251 transitions. [2021-11-06 16:37:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:43,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 122 [2021-11-06 16:37:43,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:43,174 INFO L225 Difference]: With dead ends: 16300 [2021-11-06 16:37:43,174 INFO L226 Difference]: Without dead ends: 8182 [2021-11-06 16:37:43,185 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:43,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8182 states. [2021-11-06 16:37:43,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8182 to 8182. [2021-11-06 16:37:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8182 states, 8079 states have (on average 1.381977967570244) internal successors, (11165), 8181 states have internal predecessors, (11165), 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) [2021-11-06 16:37:43,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8182 states to 8182 states and 11165 transitions. [2021-11-06 16:37:43,317 INFO L78 Accepts]: Start accepts. Automaton has 8182 states and 11165 transitions. Word has length 122 [2021-11-06 16:37:43,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:43,318 INFO L470 AbstractCegarLoop]: Abstraction has 8182 states and 11165 transitions. [2021-11-06 16:37:43,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-06 16:37:43,318 INFO L276 IsEmpty]: Start isEmpty. Operand 8182 states and 11165 transitions. [2021-11-06 16:37:43,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-06 16:37:43,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:43,320 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:43,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 16:37:43,320 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:43,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:43,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1673444390, now seen corresponding path program 1 times [2021-11-06 16:37:43,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:43,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880579909] [2021-11-06 16:37:43,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:43,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 16:37:43,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:43,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880579909] [2021-11-06 16:37:43,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880579909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:43,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:43,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:37:43,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020184512] [2021-11-06 16:37:43,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:37:43,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:43,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:37:43,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:37:43,668 INFO L87 Difference]: Start difference. First operand 8182 states and 11165 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2021-11-06 16:37:46,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:46,147 INFO L93 Difference]: Finished difference Result 16297 states and 22241 transitions. [2021-11-06 16:37:46,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 16:37:46,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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 122 [2021-11-06 16:37:46,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:46,158 INFO L225 Difference]: With dead ends: 16297 [2021-11-06 16:37:46,158 INFO L226 Difference]: Without dead ends: 8162 [2021-11-06 16:37:46,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 16:37:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2021-11-06 16:37:46,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 8151. [2021-11-06 16:37:46,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8151 states, 8048 states have (on average 1.382579522862823) internal successors, (11127), 8150 states have internal predecessors, (11127), 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) [2021-11-06 16:37:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8151 states to 8151 states and 11127 transitions. [2021-11-06 16:37:46,310 INFO L78 Accepts]: Start accepts. Automaton has 8151 states and 11127 transitions. Word has length 122 [2021-11-06 16:37:46,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:46,311 INFO L470 AbstractCegarLoop]: Abstraction has 8151 states and 11127 transitions. [2021-11-06 16:37:46,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2021-11-06 16:37:46,311 INFO L276 IsEmpty]: Start isEmpty. Operand 8151 states and 11127 transitions. [2021-11-06 16:37:46,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 16:37:46,312 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:46,313 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:46,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-06 16:37:46,313 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:46,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:46,313 INFO L85 PathProgramCache]: Analyzing trace with hash 436760356, now seen corresponding path program 1 times [2021-11-06 16:37:46,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:46,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829774665] [2021-11-06 16:37:46,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:46,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:46,686 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-06 16:37:46,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:46,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829774665] [2021-11-06 16:37:46,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829774665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:46,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:46,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:37:46,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687408842] [2021-11-06 16:37:46,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:37:46,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:46,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:37:46,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:37:46,688 INFO L87 Difference]: Start difference. First operand 8151 states and 11127 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:47,453 INFO L93 Difference]: Finished difference Result 24022 states and 32782 transitions. [2021-11-06 16:37:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 16:37:47,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-06 16:37:47,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:47,475 INFO L225 Difference]: With dead ends: 24022 [2021-11-06 16:37:47,476 INFO L226 Difference]: Without dead ends: 15931 [2021-11-06 16:37:47,486 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 16:37:47,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15931 states. [2021-11-06 16:37:47,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15931 to 8163. [2021-11-06 16:37:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8163 states, 8060 states have (on average 1.3820099255583127) internal successors, (11139), 8162 states have internal predecessors, (11139), 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) [2021-11-06 16:37:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 11139 transitions. [2021-11-06 16:37:47,686 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 11139 transitions. Word has length 126 [2021-11-06 16:37:47,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:47,686 INFO L470 AbstractCegarLoop]: Abstraction has 8163 states and 11139 transitions. [2021-11-06 16:37:47,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:47,686 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 11139 transitions. [2021-11-06 16:37:47,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 16:37:47,688 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:47,688 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:47,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-06 16:37:47,688 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:47,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:47,689 INFO L85 PathProgramCache]: Analyzing trace with hash 694925794, now seen corresponding path program 1 times [2021-11-06 16:37:47,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:47,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930145033] [2021-11-06 16:37:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:47,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:47,923 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-06 16:37:47,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:47,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930145033] [2021-11-06 16:37:47,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930145033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:47,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:47,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:37:47,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697700519] [2021-11-06 16:37:47,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:37:47,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:47,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:37:47,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:37:47,924 INFO L87 Difference]: Start difference. First operand 8163 states and 11139 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:48,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:48,765 INFO L93 Difference]: Finished difference Result 29226 states and 39862 transitions. [2021-11-06 16:37:48,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 16:37:48,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-06 16:37:48,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:48,802 INFO L225 Difference]: With dead ends: 29226 [2021-11-06 16:37:48,802 INFO L226 Difference]: Without dead ends: 21123 [2021-11-06 16:37:48,818 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 16:37:48,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21123 states. [2021-11-06 16:37:49,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21123 to 8163. [2021-11-06 16:37:49,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8163 states, 8060 states have (on average 1.38151364764268) internal successors, (11135), 8162 states have internal predecessors, (11135), 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) [2021-11-06 16:37:49,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 11135 transitions. [2021-11-06 16:37:49,193 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 11135 transitions. Word has length 126 [2021-11-06 16:37:49,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:49,193 INFO L470 AbstractCegarLoop]: Abstraction has 8163 states and 11135 transitions. [2021-11-06 16:37:49,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 11135 transitions. [2021-11-06 16:37:49,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 16:37:49,195 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:49,195 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:49,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-06 16:37:49,196 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:49,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:49,196 INFO L85 PathProgramCache]: Analyzing trace with hash -584937884, now seen corresponding path program 1 times [2021-11-06 16:37:49,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:49,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047545880] [2021-11-06 16:37:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:49,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-06 16:37:49,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:49,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047545880] [2021-11-06 16:37:49,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047545880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:49,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:49,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:37:49,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830067561] [2021-11-06 16:37:49,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:49,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:49,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:49,337 INFO L87 Difference]: Start difference. First operand 8163 states and 11135 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:52,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:52,721 INFO L93 Difference]: Finished difference Result 16158 states and 22137 transitions. [2021-11-06 16:37:52,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:52,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-06 16:37:52,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:52,732 INFO L225 Difference]: With dead ends: 16158 [2021-11-06 16:37:52,732 INFO L226 Difference]: Without dead ends: 8055 [2021-11-06 16:37:52,739 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:52,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8055 states. [2021-11-06 16:37:53,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8055 to 8055. [2021-11-06 16:37:53,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8055 states, 8006 states have (on average 1.3713464901324006) internal successors, (10979), 8054 states have internal predecessors, (10979), 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) [2021-11-06 16:37:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8055 states to 8055 states and 10979 transitions. [2021-11-06 16:37:53,069 INFO L78 Accepts]: Start accepts. Automaton has 8055 states and 10979 transitions. Word has length 126 [2021-11-06 16:37:53,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:53,070 INFO L470 AbstractCegarLoop]: Abstraction has 8055 states and 10979 transitions. [2021-11-06 16:37:53,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:53,070 INFO L276 IsEmpty]: Start isEmpty. Operand 8055 states and 10979 transitions. [2021-11-06 16:37:53,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 16:37:53,072 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:53,072 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:53,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-06 16:37:53,072 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:53,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:53,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1642509756, now seen corresponding path program 1 times [2021-11-06 16:37:53,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:53,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949693753] [2021-11-06 16:37:53,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:53,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:53,346 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-06 16:37:53,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:53,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949693753] [2021-11-06 16:37:53,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949693753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:53,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:53,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:37:53,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832092781] [2021-11-06 16:37:53,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:37:53,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:53,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:37:53,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:37:53,348 INFO L87 Difference]: Start difference. First operand 8055 states and 10979 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:54,055 INFO L93 Difference]: Finished difference Result 21297 states and 28973 transitions. [2021-11-06 16:37:54,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 16:37:54,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-06 16:37:54,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:54,074 INFO L225 Difference]: With dead ends: 21297 [2021-11-06 16:37:54,075 INFO L226 Difference]: Without dead ends: 13302 [2021-11-06 16:37:54,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 16:37:54,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13302 states. [2021-11-06 16:37:54,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13302 to 5725. [2021-11-06 16:37:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5725 states, 5682 states have (on average 1.3665962689193947) internal successors, (7765), 5724 states have internal predecessors, (7765), 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) [2021-11-06 16:37:54,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5725 states to 5725 states and 7765 transitions. [2021-11-06 16:37:54,316 INFO L78 Accepts]: Start accepts. Automaton has 5725 states and 7765 transitions. Word has length 126 [2021-11-06 16:37:54,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:54,316 INFO L470 AbstractCegarLoop]: Abstraction has 5725 states and 7765 transitions. [2021-11-06 16:37:54,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:37:54,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5725 states and 7765 transitions. [2021-11-06 16:37:54,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-06 16:37:54,323 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:54,323 INFO L513 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1] [2021-11-06 16:37:54,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-06 16:37:54,323 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:54,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:54,339 INFO L85 PathProgramCache]: Analyzing trace with hash -56083639, now seen corresponding path program 1 times [2021-11-06 16:37:54,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:54,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994122286] [2021-11-06 16:37:54,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:54,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:54,511 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 16:37:54,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:54,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994122286] [2021-11-06 16:37:54,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994122286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:54,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:54,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:37:54,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495042393] [2021-11-06 16:37:54,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:54,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:54,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:54,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:54,514 INFO L87 Difference]: Start difference. First operand 5725 states and 7765 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-11-06 16:37:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:54,715 INFO L93 Difference]: Finished difference Result 11392 states and 15455 transitions. [2021-11-06 16:37:54,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:54,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 137 [2021-11-06 16:37:54,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:54,722 INFO L225 Difference]: With dead ends: 11392 [2021-11-06 16:37:54,723 INFO L226 Difference]: Without dead ends: 5727 [2021-11-06 16:37:54,728 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2021-11-06 16:37:54,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 5727. [2021-11-06 16:37:54,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 5684 states have (on average 1.3664672765657988) internal successors, (7767), 5726 states have internal predecessors, (7767), 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) [2021-11-06 16:37:54,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 7767 transitions. [2021-11-06 16:37:54,890 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 7767 transitions. Word has length 137 [2021-11-06 16:37:54,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:54,891 INFO L470 AbstractCegarLoop]: Abstraction has 5727 states and 7767 transitions. [2021-11-06 16:37:54,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-11-06 16:37:54,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 7767 transitions. [2021-11-06 16:37:54,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-06 16:37:54,894 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:54,894 INFO L513 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1] [2021-11-06 16:37:54,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-06 16:37:54,895 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:54,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:54,895 INFO L85 PathProgramCache]: Analyzing trace with hash 162771079, now seen corresponding path program 1 times [2021-11-06 16:37:54,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:54,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348786699] [2021-11-06 16:37:54,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:54,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 16:37:55,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:55,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348786699] [2021-11-06 16:37:55,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348786699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:55,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:55,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:37:55,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837687892] [2021-11-06 16:37:55,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:55,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:55,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:55,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:55,062 INFO L87 Difference]: Start difference. First operand 5727 states and 7767 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-11-06 16:37:55,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:55,516 INFO L93 Difference]: Finished difference Result 13632 states and 18501 transitions. [2021-11-06 16:37:55,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:55,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 137 [2021-11-06 16:37:55,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:55,527 INFO L225 Difference]: With dead ends: 13632 [2021-11-06 16:37:55,527 INFO L226 Difference]: Without dead ends: 7965 [2021-11-06 16:37:55,534 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7965 states. [2021-11-06 16:37:55,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7965 to 5765. [2021-11-06 16:37:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5765 states, 5722 states have (on average 1.3636840265641383) internal successors, (7803), 5764 states have internal predecessors, (7803), 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) [2021-11-06 16:37:55,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5765 states to 5765 states and 7803 transitions. [2021-11-06 16:37:55,718 INFO L78 Accepts]: Start accepts. Automaton has 5765 states and 7803 transitions. Word has length 137 [2021-11-06 16:37:55,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:55,719 INFO L470 AbstractCegarLoop]: Abstraction has 5765 states and 7803 transitions. [2021-11-06 16:37:55,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-11-06 16:37:55,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5765 states and 7803 transitions. [2021-11-06 16:37:55,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-06 16:37:55,721 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:55,721 INFO L513 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1] [2021-11-06 16:37:55,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-06 16:37:55,721 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:55,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:55,722 INFO L85 PathProgramCache]: Analyzing trace with hash 803532183, now seen corresponding path program 1 times [2021-11-06 16:37:55,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:55,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170065553] [2021-11-06 16:37:55,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:55,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 16:37:56,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:56,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170065553] [2021-11-06 16:37:56,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170065553] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:56,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:56,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:37:56,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576018132] [2021-11-06 16:37:56,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:37:56,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:56,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:37:56,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:37:56,075 INFO L87 Difference]: Start difference. First operand 5765 states and 7803 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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) [2021-11-06 16:37:56,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:56,964 INFO L93 Difference]: Finished difference Result 20180 states and 27264 transitions. [2021-11-06 16:37:56,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 16:37:56,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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 137 [2021-11-06 16:37:56,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:56,983 INFO L225 Difference]: With dead ends: 20180 [2021-11-06 16:37:56,984 INFO L226 Difference]: Without dead ends: 14475 [2021-11-06 16:37:56,993 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 16:37:57,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14475 states. [2021-11-06 16:37:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14475 to 5558. [2021-11-06 16:37:57,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5558 states, 5518 states have (on average 1.3617252627763683) internal successors, (7514), 5557 states have internal predecessors, (7514), 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) [2021-11-06 16:37:57,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5558 states to 5558 states and 7514 transitions. [2021-11-06 16:37:57,251 INFO L78 Accepts]: Start accepts. Automaton has 5558 states and 7514 transitions. Word has length 137 [2021-11-06 16:37:57,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:57,251 INFO L470 AbstractCegarLoop]: Abstraction has 5558 states and 7514 transitions. [2021-11-06 16:37:57,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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) [2021-11-06 16:37:57,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5558 states and 7514 transitions. [2021-11-06 16:37:57,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 16:37:57,254 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:57,255 INFO L513 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1] [2021-11-06 16:37:57,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-06 16:37:57,255 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:57,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:57,255 INFO L85 PathProgramCache]: Analyzing trace with hash -632987475, now seen corresponding path program 1 times [2021-11-06 16:37:57,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:57,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412347154] [2021-11-06 16:37:57,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:57,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 16:37:57,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:57,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412347154] [2021-11-06 16:37:57,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412347154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:57,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:57,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:37:57,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922136840] [2021-11-06 16:37:57,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:37:57,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:57,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:37:57,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:57,454 INFO L87 Difference]: Start difference. First operand 5558 states and 7514 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2021-11-06 16:37:57,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:57,741 INFO L93 Difference]: Finished difference Result 11058 states and 14953 transitions. [2021-11-06 16:37:57,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:37:57,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 138 [2021-11-06 16:37:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:57,747 INFO L225 Difference]: With dead ends: 11058 [2021-11-06 16:37:57,747 INFO L226 Difference]: Without dead ends: 5560 [2021-11-06 16:37:57,751 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:37:57,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5560 states. [2021-11-06 16:37:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5560 to 5560. [2021-11-06 16:37:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5560 states, 5520 states have (on average 1.3615942028985508) internal successors, (7516), 5559 states have internal predecessors, (7516), 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) [2021-11-06 16:37:57,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 7516 transitions. [2021-11-06 16:37:57,963 INFO L78 Accepts]: Start accepts. Automaton has 5560 states and 7516 transitions. Word has length 138 [2021-11-06 16:37:57,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:57,964 INFO L470 AbstractCegarLoop]: Abstraction has 5560 states and 7516 transitions. [2021-11-06 16:37:57,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2021-11-06 16:37:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5560 states and 7516 transitions. [2021-11-06 16:37:57,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 16:37:57,968 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:57,968 INFO L513 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1] [2021-11-06 16:37:57,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-06 16:37:57,968 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:57,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash -414132757, now seen corresponding path program 1 times [2021-11-06 16:37:57,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:57,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512683602] [2021-11-06 16:37:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:57,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 16:37:58,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:58,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512683602] [2021-11-06 16:37:58,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512683602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:58,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:58,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:37:58,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881711139] [2021-11-06 16:37:58,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:37:58,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:58,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:37:58,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:37:58,256 INFO L87 Difference]: Start difference. First operand 5560 states and 7516 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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) [2021-11-06 16:37:59,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:37:59,048 INFO L93 Difference]: Finished difference Result 18742 states and 25333 transitions. [2021-11-06 16:37:59,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 16:37:59,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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 138 [2021-11-06 16:37:59,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:37:59,066 INFO L225 Difference]: With dead ends: 18742 [2021-11-06 16:37:59,066 INFO L226 Difference]: Without dead ends: 13242 [2021-11-06 16:37:59,073 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 16:37:59,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13242 states. [2021-11-06 16:37:59,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13242 to 5076. [2021-11-06 16:37:59,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5037 states have (on average 1.361127655350407) internal successors, (6856), 5075 states have internal predecessors, (6856), 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) [2021-11-06 16:37:59,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 6856 transitions. [2021-11-06 16:37:59,279 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 6856 transitions. Word has length 138 [2021-11-06 16:37:59,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:37:59,279 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 6856 transitions. [2021-11-06 16:37:59,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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) [2021-11-06 16:37:59,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 6856 transitions. [2021-11-06 16:37:59,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-06 16:37:59,281 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:37:59,282 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:37:59,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-06 16:37:59,282 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:37:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:37:59,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1966385123, now seen corresponding path program 1 times [2021-11-06 16:37:59,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:37:59,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665443110] [2021-11-06 16:37:59,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:37:59,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:37:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:37:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-06 16:37:59,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:37:59,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665443110] [2021-11-06 16:37:59,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665443110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:37:59,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:37:59,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:37:59,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837221196] [2021-11-06 16:37:59,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:37:59,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:37:59,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:37:59,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:37:59,473 INFO L87 Difference]: Start difference. First operand 5076 states and 6856 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2021-11-06 16:38:00,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:00,402 INFO L93 Difference]: Finished difference Result 15843 states and 21431 transitions. [2021-11-06 16:38:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 16:38:00,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 142 [2021-11-06 16:38:00,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:00,445 INFO L225 Difference]: With dead ends: 15843 [2021-11-06 16:38:00,445 INFO L226 Difference]: Without dead ends: 14904 [2021-11-06 16:38:00,449 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 16:38:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14904 states. [2021-11-06 16:38:00,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14904 to 5076. [2021-11-06 16:38:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5037 states have (on average 1.360333531864205) internal successors, (6852), 5075 states have internal predecessors, (6852), 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) [2021-11-06 16:38:00,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 6852 transitions. [2021-11-06 16:38:00,686 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 6852 transitions. Word has length 142 [2021-11-06 16:38:00,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:00,688 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 6852 transitions. [2021-11-06 16:38:00,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2021-11-06 16:38:00,688 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 6852 transitions. [2021-11-06 16:38:00,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-06 16:38:00,690 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:00,690 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:38:00,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-06 16:38:00,691 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:00,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:00,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1819109083, now seen corresponding path program 1 times [2021-11-06 16:38:00,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:00,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714243023] [2021-11-06 16:38:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:00,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:00,878 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-06 16:38:00,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:00,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714243023] [2021-11-06 16:38:00,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714243023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:00,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:38:00,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:38:00,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563676043] [2021-11-06 16:38:00,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:38:00,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:00,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:38:00,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:38:00,879 INFO L87 Difference]: Start difference. First operand 5076 states and 6852 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2021-11-06 16:38:01,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:01,507 INFO L93 Difference]: Finished difference Result 7762 states and 10456 transitions. [2021-11-06 16:38:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 16:38:01,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 142 [2021-11-06 16:38:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:01,516 INFO L225 Difference]: With dead ends: 7762 [2021-11-06 16:38:01,516 INFO L226 Difference]: Without dead ends: 6835 [2021-11-06 16:38:01,518 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 16:38:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6835 states. [2021-11-06 16:38:01,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6835 to 5076. [2021-11-06 16:38:01,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5037 states have (on average 1.3599364701211039) internal successors, (6850), 5075 states have internal predecessors, (6850), 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) [2021-11-06 16:38:01,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 6850 transitions. [2021-11-06 16:38:01,754 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 6850 transitions. Word has length 142 [2021-11-06 16:38:01,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:01,754 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 6850 transitions. [2021-11-06 16:38:01,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2021-11-06 16:38:01,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 6850 transitions. [2021-11-06 16:38:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-06 16:38:01,756 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:01,756 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:38:01,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-06 16:38:01,756 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:01,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:01,757 INFO L85 PathProgramCache]: Analyzing trace with hash 532464507, now seen corresponding path program 1 times [2021-11-06 16:38:01,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:01,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026930168] [2021-11-06 16:38:01,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:01,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:01,983 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 16:38:01,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:01,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026930168] [2021-11-06 16:38:01,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026930168] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 16:38:01,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118154327] [2021-11-06 16:38:01,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:01,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 16:38:01,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:38:01,996 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) [2021-11-06 16:38:01,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 16:38:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:02,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 2742 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 16:38:02,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 16:38:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 16:38:04,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118154327] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:04,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 16:38:04,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-06 16:38:04,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504641206] [2021-11-06 16:38:04,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 16:38:04,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:04,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 16:38:04,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:38:04,002 INFO L87 Difference]: Start difference. First operand 5076 states and 6850 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2021-11-06 16:38:07,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:07,026 INFO L93 Difference]: Finished difference Result 15165 states and 20470 transitions. [2021-11-06 16:38:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 16:38:07,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 142 [2021-11-06 16:38:07,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:07,062 INFO L225 Difference]: With dead ends: 15165 [2021-11-06 16:38:07,062 INFO L226 Difference]: Without dead ends: 15152 [2021-11-06 16:38:07,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:38:07,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15152 states. [2021-11-06 16:38:07,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15152 to 13031. [2021-11-06 16:38:07,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13031 states, 12992 states have (on average 1.3643011083743843) internal successors, (17725), 13030 states have internal predecessors, (17725), 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) [2021-11-06 16:38:07,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13031 states to 13031 states and 17725 transitions. [2021-11-06 16:38:07,774 INFO L78 Accepts]: Start accepts. Automaton has 13031 states and 17725 transitions. Word has length 142 [2021-11-06 16:38:07,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:07,776 INFO L470 AbstractCegarLoop]: Abstraction has 13031 states and 17725 transitions. [2021-11-06 16:38:07,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2021-11-06 16:38:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 13031 states and 17725 transitions. [2021-11-06 16:38:07,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 16:38:07,782 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:07,782 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:38:07,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-06 16:38:07,992 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,SelfDestructingSolverStorable24 [2021-11-06 16:38:07,993 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:07,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:07,993 INFO L85 PathProgramCache]: Analyzing trace with hash -783328596, now seen corresponding path program 1 times [2021-11-06 16:38:07,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:07,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720587911] [2021-11-06 16:38:07,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:07,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:08,113 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-06 16:38:08,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:08,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720587911] [2021-11-06 16:38:08,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720587911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:08,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:38:08,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:38:08,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401961734] [2021-11-06 16:38:08,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:38:08,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:08,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:38:08,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:08,115 INFO L87 Difference]: Start difference. First operand 13031 states and 17725 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2021-11-06 16:38:09,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:09,273 INFO L93 Difference]: Finished difference Result 38492 states and 52369 transitions. [2021-11-06 16:38:09,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:38:09,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 149 [2021-11-06 16:38:09,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:09,303 INFO L225 Difference]: With dead ends: 38492 [2021-11-06 16:38:09,303 INFO L226 Difference]: Without dead ends: 25492 [2021-11-06 16:38:09,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:09,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25492 states. [2021-11-06 16:38:10,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25492 to 24304. [2021-11-06 16:38:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24265 states have (on average 1.3663301050896353) internal successors, (33154), 24303 states have internal predecessors, (33154), 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) [2021-11-06 16:38:10,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 33154 transitions. [2021-11-06 16:38:10,360 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 33154 transitions. Word has length 149 [2021-11-06 16:38:10,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:10,360 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 33154 transitions. [2021-11-06 16:38:10,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2021-11-06 16:38:10,361 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 33154 transitions. [2021-11-06 16:38:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 16:38:10,372 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:10,372 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:38:10,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-06 16:38:10,372 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:10,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:10,373 INFO L85 PathProgramCache]: Analyzing trace with hash -733344694, now seen corresponding path program 2 times [2021-11-06 16:38:10,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:10,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353163554] [2021-11-06 16:38:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:10,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:10,504 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-06 16:38:10,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:10,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353163554] [2021-11-06 16:38:10,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353163554] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:10,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:38:10,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:38:10,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714157477] [2021-11-06 16:38:10,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:38:10,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:10,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:38:10,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:10,506 INFO L87 Difference]: Start difference. First operand 24304 states and 33154 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-11-06 16:38:14,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:14,131 INFO L93 Difference]: Finished difference Result 53818 states and 73365 transitions. [2021-11-06 16:38:14,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:38:14,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 149 [2021-11-06 16:38:14,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:14,177 INFO L225 Difference]: With dead ends: 53818 [2021-11-06 16:38:14,177 INFO L226 Difference]: Without dead ends: 29560 [2021-11-06 16:38:14,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29560 states. [2021-11-06 16:38:15,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29560 to 28170. [2021-11-06 16:38:15,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28170 states, 28131 states have (on average 1.3660730155344638) internal successors, (38429), 28169 states have internal predecessors, (38429), 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) [2021-11-06 16:38:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28170 states to 28170 states and 38429 transitions. [2021-11-06 16:38:15,732 INFO L78 Accepts]: Start accepts. Automaton has 28170 states and 38429 transitions. Word has length 149 [2021-11-06 16:38:15,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:15,733 INFO L470 AbstractCegarLoop]: Abstraction has 28170 states and 38429 transitions. [2021-11-06 16:38:15,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-11-06 16:38:15,733 INFO L276 IsEmpty]: Start isEmpty. Operand 28170 states and 38429 transitions. [2021-11-06 16:38:15,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-06 16:38:15,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:15,741 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:38:15,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-06 16:38:15,742 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:15,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:15,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1081768851, now seen corresponding path program 1 times [2021-11-06 16:38:15,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:15,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508213215] [2021-11-06 16:38:15,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:15,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-06 16:38:15,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:15,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508213215] [2021-11-06 16:38:15,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508213215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:15,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:38:15,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:38:15,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679986251] [2021-11-06 16:38:15,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:38:15,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:15,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:38:15,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:15,890 INFO L87 Difference]: Start difference. First operand 28170 states and 38429 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2021-11-06 16:38:19,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:19,481 INFO L93 Difference]: Finished difference Result 56164 states and 76650 transitions. [2021-11-06 16:38:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:38:19,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 154 [2021-11-06 16:38:19,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:19,516 INFO L225 Difference]: With dead ends: 56164 [2021-11-06 16:38:19,517 INFO L226 Difference]: Without dead ends: 27895 [2021-11-06 16:38:19,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:19,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27895 states. [2021-11-06 16:38:21,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27895 to 27895. [2021-11-06 16:38:21,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27895 states, 27856 states have (on average 1.362578977599081) internal successors, (37956), 27894 states have internal predecessors, (37956), 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) [2021-11-06 16:38:21,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27895 states to 27895 states and 37956 transitions. [2021-11-06 16:38:21,164 INFO L78 Accepts]: Start accepts. Automaton has 27895 states and 37956 transitions. Word has length 154 [2021-11-06 16:38:21,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:21,164 INFO L470 AbstractCegarLoop]: Abstraction has 27895 states and 37956 transitions. [2021-11-06 16:38:21,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2021-11-06 16:38:21,164 INFO L276 IsEmpty]: Start isEmpty. Operand 27895 states and 37956 transitions. [2021-11-06 16:38:21,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-06 16:38:21,173 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:21,173 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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] [2021-11-06 16:38:21,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-06 16:38:21,173 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:21,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1554225449, now seen corresponding path program 1 times [2021-11-06 16:38:21,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:21,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879644869] [2021-11-06 16:38:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:21,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-06 16:38:21,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:21,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879644869] [2021-11-06 16:38:21,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879644869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:21,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:38:21,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:38:21,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82745738] [2021-11-06 16:38:21,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:38:21,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:21,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:38:21,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:38:21,630 INFO L87 Difference]: Start difference. First operand 27895 states and 37956 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2021-11-06 16:38:25,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:25,371 INFO L93 Difference]: Finished difference Result 74352 states and 100779 transitions. [2021-11-06 16:38:25,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 16:38:25,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 155 [2021-11-06 16:38:25,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:25,431 INFO L225 Difference]: With dead ends: 74352 [2021-11-06 16:38:25,432 INFO L226 Difference]: Without dead ends: 46533 [2021-11-06 16:38:25,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 16:38:25,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46533 states. [2021-11-06 16:38:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46533 to 27979. [2021-11-06 16:38:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27979 states, 27940 states have (on average 1.3614889047959915) internal successors, (38040), 27978 states have internal predecessors, (38040), 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) [2021-11-06 16:38:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27979 states to 27979 states and 38040 transitions. [2021-11-06 16:38:27,225 INFO L78 Accepts]: Start accepts. Automaton has 27979 states and 38040 transitions. Word has length 155 [2021-11-06 16:38:27,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:27,225 INFO L470 AbstractCegarLoop]: Abstraction has 27979 states and 38040 transitions. [2021-11-06 16:38:27,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2021-11-06 16:38:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 27979 states and 38040 transitions. [2021-11-06 16:38:27,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-06 16:38:27,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:27,234 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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] [2021-11-06 16:38:27,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-06 16:38:27,234 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:27,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:27,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1140568477, now seen corresponding path program 1 times [2021-11-06 16:38:27,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:27,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826414541] [2021-11-06 16:38:27,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:27,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-06 16:38:27,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:27,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826414541] [2021-11-06 16:38:27,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826414541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:27,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:38:27,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:38:27,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456112137] [2021-11-06 16:38:27,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:38:27,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:27,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:38:27,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:27,545 INFO L87 Difference]: Start difference. First operand 27979 states and 38040 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-11-06 16:38:29,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:29,329 INFO L93 Difference]: Finished difference Result 55953 states and 76077 transitions. [2021-11-06 16:38:29,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:38:29,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 156 [2021-11-06 16:38:29,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:29,371 INFO L225 Difference]: With dead ends: 55953 [2021-11-06 16:38:29,371 INFO L226 Difference]: Without dead ends: 27982 [2021-11-06 16:38:29,395 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:29,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27982 states. [2021-11-06 16:38:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27982 to 27982. [2021-11-06 16:38:31,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27982 states, 27943 states have (on average 1.361450094835916) internal successors, (38043), 27981 states have internal predecessors, (38043), 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) [2021-11-06 16:38:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27982 states to 27982 states and 38043 transitions. [2021-11-06 16:38:31,056 INFO L78 Accepts]: Start accepts. Automaton has 27982 states and 38043 transitions. Word has length 156 [2021-11-06 16:38:31,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:31,057 INFO L470 AbstractCegarLoop]: Abstraction has 27982 states and 38043 transitions. [2021-11-06 16:38:31,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-11-06 16:38:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 27982 states and 38043 transitions. [2021-11-06 16:38:31,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-06 16:38:31,066 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:31,066 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2021-11-06 16:38:31,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-06 16:38:31,067 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:31,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:31,068 INFO L85 PathProgramCache]: Analyzing trace with hash 936317364, now seen corresponding path program 1 times [2021-11-06 16:38:31,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:31,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289315760] [2021-11-06 16:38:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:31,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-06 16:38:31,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:31,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289315760] [2021-11-06 16:38:31,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289315760] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 16:38:31,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881431861] [2021-11-06 16:38:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:31,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 16:38:31,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:38:31,497 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) [2021-11-06 16:38:31,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 16:38:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:32,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 2818 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 16:38:32,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 16:38:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-06 16:38:33,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881431861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:33,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 16:38:33,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-06 16:38:33,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819966225] [2021-11-06 16:38:33,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:38:33,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:33,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:38:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-06 16:38:33,067 INFO L87 Difference]: Start difference. First operand 27982 states and 38043 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2021-11-06 16:38:37,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:37,433 INFO L93 Difference]: Finished difference Result 88419 states and 120409 transitions. [2021-11-06 16:38:37,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 16:38:37,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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 159 [2021-11-06 16:38:37,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:37,555 INFO L225 Difference]: With dead ends: 88419 [2021-11-06 16:38:37,556 INFO L226 Difference]: Without dead ends: 82480 [2021-11-06 16:38:37,582 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-06 16:38:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82480 states. [2021-11-06 16:38:39,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82480 to 27898. [2021-11-06 16:38:39,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27898 states, 27859 states have (on average 1.361534872034172) internal successors, (37931), 27897 states have internal predecessors, (37931), 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) [2021-11-06 16:38:39,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27898 states to 27898 states and 37931 transitions. [2021-11-06 16:38:39,663 INFO L78 Accepts]: Start accepts. Automaton has 27898 states and 37931 transitions. Word has length 159 [2021-11-06 16:38:39,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:39,663 INFO L470 AbstractCegarLoop]: Abstraction has 27898 states and 37931 transitions. [2021-11-06 16:38:39,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2021-11-06 16:38:39,663 INFO L276 IsEmpty]: Start isEmpty. Operand 27898 states and 37931 transitions. [2021-11-06 16:38:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-06 16:38:39,675 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:39,675 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:38:39,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-06 16:38:39,890 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,SelfDestructingSolverStorable30 [2021-11-06 16:38:39,891 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:39,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:39,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1668520956, now seen corresponding path program 1 times [2021-11-06 16:38:39,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:39,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644688548] [2021-11-06 16:38:39,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:39,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-06 16:38:40,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:40,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644688548] [2021-11-06 16:38:40,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644688548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:40,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:38:40,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:38:40,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895652502] [2021-11-06 16:38:40,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:38:40,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:40,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:38:40,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:40,078 INFO L87 Difference]: Start difference. First operand 27898 states and 37931 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2021-11-06 16:38:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:45,838 INFO L93 Difference]: Finished difference Result 55731 states and 75797 transitions. [2021-11-06 16:38:45,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:38:45,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 170 [2021-11-06 16:38:45,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:45,900 INFO L225 Difference]: With dead ends: 55731 [2021-11-06 16:38:45,900 INFO L226 Difference]: Without dead ends: 27912 [2021-11-06 16:38:45,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:45,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27912 states. [2021-11-06 16:38:47,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27912 to 27912. [2021-11-06 16:38:47,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27912 states, 27873 states have (on average 1.3613532809528934) internal successors, (37945), 27911 states have internal predecessors, (37945), 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) [2021-11-06 16:38:47,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27912 states to 27912 states and 37945 transitions. [2021-11-06 16:38:47,725 INFO L78 Accepts]: Start accepts. Automaton has 27912 states and 37945 transitions. Word has length 170 [2021-11-06 16:38:47,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:47,725 INFO L470 AbstractCegarLoop]: Abstraction has 27912 states and 37945 transitions. [2021-11-06 16:38:47,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2021-11-06 16:38:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 27912 states and 37945 transitions. [2021-11-06 16:38:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-06 16:38:47,734 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:47,734 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:38:47,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-06 16:38:47,735 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:47,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:47,735 INFO L85 PathProgramCache]: Analyzing trace with hash 781079174, now seen corresponding path program 1 times [2021-11-06 16:38:47,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:47,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815218214] [2021-11-06 16:38:47,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:47,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-06 16:38:47,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:47,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815218214] [2021-11-06 16:38:47,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815218214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:47,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:38:47,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:38:47,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277886687] [2021-11-06 16:38:47,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:38:47,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:38:47,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:47,892 INFO L87 Difference]: Start difference. First operand 27912 states and 37945 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2021-11-06 16:38:55,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:38:55,495 INFO L93 Difference]: Finished difference Result 55766 states and 75839 transitions. [2021-11-06 16:38:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:38:55,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 170 [2021-11-06 16:38:55,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:38:55,533 INFO L225 Difference]: With dead ends: 55766 [2021-11-06 16:38:55,533 INFO L226 Difference]: Without dead ends: 27933 [2021-11-06 16:38:55,561 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:38:55,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27933 states. [2021-11-06 16:38:57,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27933 to 27933. [2021-11-06 16:38:57,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27933 states, 27894 states have (on average 1.3610812361081237) internal successors, (37966), 27932 states have internal predecessors, (37966), 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) [2021-11-06 16:38:57,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27933 states to 27933 states and 37966 transitions. [2021-11-06 16:38:57,230 INFO L78 Accepts]: Start accepts. Automaton has 27933 states and 37966 transitions. Word has length 170 [2021-11-06 16:38:57,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:38:57,231 INFO L470 AbstractCegarLoop]: Abstraction has 27933 states and 37966 transitions. [2021-11-06 16:38:57,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2021-11-06 16:38:57,231 INFO L276 IsEmpty]: Start isEmpty. Operand 27933 states and 37966 transitions. [2021-11-06 16:38:57,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-06 16:38:57,239 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:38:57,239 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:38:57,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-06 16:38:57,240 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:38:57,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:38:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash 386712388, now seen corresponding path program 1 times [2021-11-06 16:38:57,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:38:57,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797760641] [2021-11-06 16:38:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:38:57,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:38:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:38:57,628 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-06 16:38:57,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:38:57,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797760641] [2021-11-06 16:38:57,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797760641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:38:57,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:38:57,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:38:57,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748672122] [2021-11-06 16:38:57,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:38:57,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:38:57,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:38:57,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:38:57,630 INFO L87 Difference]: Start difference. First operand 27933 states and 37966 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2021-11-06 16:39:20,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:39:20,143 INFO L93 Difference]: Finished difference Result 127212 states and 172083 transitions. [2021-11-06 16:39:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 16:39:20,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 170 [2021-11-06 16:39:20,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:39:20,421 INFO L225 Difference]: With dead ends: 127212 [2021-11-06 16:39:20,421 INFO L226 Difference]: Without dead ends: 99358 [2021-11-06 16:39:20,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:39:20,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99358 states. [2021-11-06 16:39:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99358 to 27996. [2021-11-06 16:39:22,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27996 states, 27957 states have (on average 1.3602675537432485) internal successors, (38029), 27995 states have internal predecessors, (38029), 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) [2021-11-06 16:39:22,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27996 states to 27996 states and 38029 transitions. [2021-11-06 16:39:22,715 INFO L78 Accepts]: Start accepts. Automaton has 27996 states and 38029 transitions. Word has length 170 [2021-11-06 16:39:22,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:39:22,716 INFO L470 AbstractCegarLoop]: Abstraction has 27996 states and 38029 transitions. [2021-11-06 16:39:22,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2021-11-06 16:39:22,716 INFO L276 IsEmpty]: Start isEmpty. Operand 27996 states and 38029 transitions. [2021-11-06 16:39:22,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-06 16:39:22,724 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:39:22,724 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:39:22,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-06 16:39:22,725 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:39:22,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:39:22,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1453189176, now seen corresponding path program 1 times [2021-11-06 16:39:22,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:39:22,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480324273] [2021-11-06 16:39:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:39:22,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:39:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:39:23,101 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-06 16:39:23,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:39:23,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480324273] [2021-11-06 16:39:23,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480324273] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:39:23,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:39:23,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:39:23,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113484860] [2021-11-06 16:39:23,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:39:23,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:39:23,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:39:23,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:39:23,102 INFO L87 Difference]: Start difference. First operand 27996 states and 38029 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2021-11-06 16:39:28,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:39:28,811 INFO L93 Difference]: Finished difference Result 80953 states and 109675 transitions. [2021-11-06 16:39:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 16:39:28,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 170 [2021-11-06 16:39:28,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:39:28,890 INFO L225 Difference]: With dead ends: 80953 [2021-11-06 16:39:28,891 INFO L226 Difference]: Without dead ends: 53036 [2021-11-06 16:39:28,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 16:39:28,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53036 states. [2021-11-06 16:39:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53036 to 28038. [2021-11-06 16:39:30,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28038 states, 27999 states have (on average 1.3597271331118967) internal successors, (38071), 28037 states have internal predecessors, (38071), 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) [2021-11-06 16:39:30,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28038 states to 28038 states and 38071 transitions. [2021-11-06 16:39:30,979 INFO L78 Accepts]: Start accepts. Automaton has 28038 states and 38071 transitions. Word has length 170 [2021-11-06 16:39:30,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:39:30,979 INFO L470 AbstractCegarLoop]: Abstraction has 28038 states and 38071 transitions. [2021-11-06 16:39:30,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2021-11-06 16:39:30,980 INFO L276 IsEmpty]: Start isEmpty. Operand 28038 states and 38071 transitions. [2021-11-06 16:39:30,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-06 16:39:30,988 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:39:30,988 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:39:30,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-06 16:39:30,988 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:39:30,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:39:30,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1533150141, now seen corresponding path program 1 times [2021-11-06 16:39:30,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:39:30,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980328239] [2021-11-06 16:39:30,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:39:30,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:39:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:39:31,167 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-06 16:39:31,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:39:31,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980328239] [2021-11-06 16:39:31,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980328239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:39:31,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:39:31,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:39:31,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715824082] [2021-11-06 16:39:31,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:39:31,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:39:31,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:39:31,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:39:31,169 INFO L87 Difference]: Start difference. First operand 28038 states and 38071 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 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) [2021-11-06 16:39:33,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:39:33,615 INFO L93 Difference]: Finished difference Result 39412 states and 53317 transitions. [2021-11-06 16:39:33,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 16:39:33,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 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 170 [2021-11-06 16:39:33,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:39:33,659 INFO L225 Difference]: With dead ends: 39412 [2021-11-06 16:39:33,659 INFO L226 Difference]: Without dead ends: 33557 [2021-11-06 16:39:33,673 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 16:39:33,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33557 states. [2021-11-06 16:39:35,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33557 to 28038. [2021-11-06 16:39:35,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28038 states, 27999 states have (on average 1.3594771241830066) internal successors, (38064), 28037 states have internal predecessors, (38064), 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) [2021-11-06 16:39:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28038 states to 28038 states and 38064 transitions. [2021-11-06 16:39:35,722 INFO L78 Accepts]: Start accepts. Automaton has 28038 states and 38064 transitions. Word has length 170 [2021-11-06 16:39:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:39:35,722 INFO L470 AbstractCegarLoop]: Abstraction has 28038 states and 38064 transitions. [2021-11-06 16:39:35,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 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) [2021-11-06 16:39:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 28038 states and 38064 transitions. [2021-11-06 16:39:35,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-06 16:39:35,731 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:39:35,731 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:39:35,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-06 16:39:35,732 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-06 16:39:35,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:39:35,732 INFO L85 PathProgramCache]: Analyzing trace with hash 669895447, now seen corresponding path program 1 times [2021-11-06 16:39:35,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:39:35,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880346388] [2021-11-06 16:39:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:39:35,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:39:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:39:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-06 16:39:36,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:39:36,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880346388] [2021-11-06 16:39:36,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880346388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:39:36,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:39:36,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 16:39:36,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168554834] [2021-11-06 16:39:36,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 16:39:36,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:39:36,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 16:39:36,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:39:36,138 INFO L87 Difference]: Start difference. First operand 28038 states and 38064 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 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) [2021-11-06 16:39:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:39:52,268 INFO L93 Difference]: Finished difference Result 200906 states and 272460 transitions. [2021-11-06 16:39:52,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 16:39:52,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2021-11-06 16:39:52,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:39:52,742 INFO L225 Difference]: With dead ends: 200906 [2021-11-06 16:39:52,743 INFO L226 Difference]: Without dead ends: 172947 [2021-11-06 16:39:52,810 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-06 16:39:52,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172947 states.