./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-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-43_2a-drivers--isdn--hardware--mISDN--w6692.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 739f3451e6066963c0b7569760000f821b0e10d41a2bb279dc204ee3e2cd1a3e --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 18:56:25,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 18:56:25,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 18:56:25,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 18:56:25,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 18:56:25,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 18:56:25,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 18:56:25,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 18:56:25,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 18:56:25,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 18:56:25,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 18:56:25,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 18:56:26,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 18:56:26,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 18:56:26,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 18:56:26,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 18:56:26,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 18:56:26,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 18:56:26,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 18:56:26,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 18:56:26,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 18:56:26,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 18:56:26,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 18:56:26,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 18:56:26,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 18:56:26,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 18:56:26,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 18:56:26,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 18:56:26,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 18:56:26,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 18:56:26,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 18:56:26,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 18:56:26,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 18:56:26,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 18:56:26,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 18:56:26,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 18:56:26,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 18:56:26,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 18:56:26,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 18:56:26,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 18:56:26,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 18:56:26,031 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 18:56:26,054 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 18:56:26,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 18:56:26,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 18:56:26,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 18:56:26,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 18:56:26,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 18:56:26,057 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 18:56:26,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 18:56:26,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 18:56:26,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 18:56:26,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 18:56:26,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 18:56:26,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 18:56:26,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 18:56:26,059 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 18:56:26,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 18:56:26,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 18:56:26,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 18:56:26,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 18:56:26,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:56:26,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 18:56:26,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 18:56:26,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 18:56:26,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 18:56:26,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 18:56:26,061 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 18:56:26,061 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 18:56:26,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 18:56:26,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 18:56:26,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 739f3451e6066963c0b7569760000f821b0e10d41a2bb279dc204ee3e2cd1a3e [2021-11-05 18:56:26,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 18:56:26,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 18:56:26,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 18:56:26,353 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 18:56:26,353 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 18:56:26,354 INFO L432 ainManager$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-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2021-11-05 18:56:26,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cffc1582d/896cff6d92ce401298a563608b3fd897/FLAGec58277f7 [2021-11-05 18:56:27,015 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 18:56:27,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2021-11-05 18:56:27,059 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cffc1582d/896cff6d92ce401298a563608b3fd897/FLAGec58277f7 [2021-11-05 18:56:27,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cffc1582d/896cff6d92ce401298a563608b3fd897 [2021-11-05 18:56:27,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 18:56:27,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 18:56:27,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 18:56:27,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 18:56:27,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 18:56:27,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:56:27" (1/1) ... [2021-11-05 18:56:27,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f37e784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:27, skipping insertion in model container [2021-11-05 18:56:27,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:56:27" (1/1) ... [2021-11-05 18:56:27,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 18:56:27,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 18:56:28,626 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-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i[284626,284639] [2021-11-05 18:56:28,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:56:28,735 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 18:56:28,995 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-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i[284626,284639] [2021-11-05 18:56:29,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:56:29,053 INFO L208 MainTranslator]: Completed translation [2021-11-05 18:56:29,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29 WrapperNode [2021-11-05 18:56:29,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 18:56:29,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 18:56:29,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 18:56:29,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 18:56:29,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:29,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:30,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 18:56:30,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 18:56:30,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 18:56:30,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 18:56:30,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:30,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:30,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:30,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:30,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:30,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:30,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:31,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 18:56:31,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 18:56:31,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 18:56:31,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 18:56:31,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (1/1) ... [2021-11-05 18:56:31,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:56:31,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 18:56:31,108 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) [2021-11-05 18:56:31,126 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 [2021-11-05 18:56:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 18:56:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 18:56:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 18:56:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 18:56:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 18:56:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 18:56:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 18:56:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 18:56:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 18:56:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 18:56:31,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 18:57:27,903 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 18:57:27,903 INFO L299 CfgBuilder]: Removed 4694 assume(true) statements. [2021-11-05 18:57:27,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:57:27 BoogieIcfgContainer [2021-11-05 18:57:27,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 18:57:27,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 18:57:27,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 18:57:27,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 18:57:27,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 06:56:27" (1/3) ... [2021-11-05 18:57:27,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b248cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:57:27, skipping insertion in model container [2021-11-05 18:57:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:56:29" (2/3) ... [2021-11-05 18:57:27,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b248cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:57:27, skipping insertion in model container [2021-11-05 18:57:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:57:27" (3/3) ... [2021-11-05 18:57:27,913 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2021-11-05 18:57:27,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 18:57:27,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-05 18:57:27,966 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 18:57:27,971 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 [2021-11-05 18:57:27,971 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-05 18:57:28,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 4341 states, 4331 states have (on average 1.3876702839990764) internal successors, (6010), 4340 states have internal predecessors, (6010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:28,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 18:57:28,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:28,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:57:28,022 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:28,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1080722524, now seen corresponding path program 1 times [2021-11-05 18:57:28,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:28,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546931750] [2021-11-05 18:57:28,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:28,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:57:28,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:28,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546931750] [2021-11-05 18:57:28,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546931750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:28,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:28,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:57:28,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597856157] [2021-11-05 18:57:28,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:28,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 18:57:28,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:28,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 18:57:28,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 18:57:28,513 INFO L87 Difference]: Start difference. First operand has 4341 states, 4331 states have (on average 1.3876702839990764) internal successors, (6010), 4340 states have internal predecessors, (6010), 0 states have call successors, (0), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:28,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:28,637 INFO L93 Difference]: Finished difference Result 8678 states and 12015 transitions. [2021-11-05 18:57:28,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 18:57:28,639 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-05 18:57:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:28,664 INFO L225 Difference]: With dead ends: 8678 [2021-11-05 18:57:28,665 INFO L226 Difference]: Without dead ends: 4326 [2021-11-05 18:57:28,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 18:57:28,683 INFO L933 BasicCegarLoop]: 5986 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:28,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5986 Invalid, 0 Unknown, 0 Unchecked, 11.41ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 18:57:28,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4326 states. [2021-11-05 18:57:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4326 to 4326. [2021-11-05 18:57:28,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4326 states, 4317 states have (on average 1.3808200138985407) internal successors, (5961), 4325 states have internal predecessors, (5961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 5961 transitions. [2021-11-05 18:57:28,822 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 5961 transitions. Word has length 22 [2021-11-05 18:57:28,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:28,822 INFO L470 AbstractCegarLoop]: Abstraction has 4326 states and 5961 transitions. [2021-11-05 18:57:28,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 5961 transitions. [2021-11-05 18:57:28,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 18:57:28,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:28,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:57:28,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 18:57:28,824 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:28,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1187020318, now seen corresponding path program 1 times [2021-11-05 18:57:28,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:28,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184669543] [2021-11-05 18:57:28,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:28,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:57:29,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:29,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184669543] [2021-11-05 18:57:29,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184669543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:29,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:29,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:57:29,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178412262] [2021-11-05 18:57:29,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:29,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:57:29,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:57:29,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:57:29,102 INFO L87 Difference]: Start difference. First operand 4326 states and 5961 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:29,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:29,429 INFO L93 Difference]: Finished difference Result 12528 states and 17341 transitions. [2021-11-05 18:57:29,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:57:29,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-05 18:57:29,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:29,455 INFO L225 Difference]: With dead ends: 12528 [2021-11-05 18:57:29,455 INFO L226 Difference]: Without dead ends: 8217 [2021-11-05 18:57:29,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:57:29,467 INFO L933 BasicCegarLoop]: 5960 mSDtfsCounter, 5443 mSDsluCounter, 5934 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5443 SdHoareTripleChecker+Valid, 11894 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.45ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 182.28ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:29,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5443 Valid, 11894 Invalid, 14 Unknown, 0 Unchecked, 18.45ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 182.28ms Time] [2021-11-05 18:57:29,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2021-11-05 18:57:29,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 8200. [2021-11-05 18:57:29,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8200 states, 8191 states have (on average 1.3899401782444145) internal successors, (11385), 8199 states have internal predecessors, (11385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8200 states to 8200 states and 11385 transitions. [2021-11-05 18:57:29,850 INFO L78 Accepts]: Start accepts. Automaton has 8200 states and 11385 transitions. Word has length 22 [2021-11-05 18:57:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:29,851 INFO L470 AbstractCegarLoop]: Abstraction has 8200 states and 11385 transitions. [2021-11-05 18:57:29,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 8200 states and 11385 transitions. [2021-11-05 18:57:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-05 18:57:29,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:29,854 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:57:29,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 18:57:29,854 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:29,855 INFO L85 PathProgramCache]: Analyzing trace with hash 567191233, now seen corresponding path program 1 times [2021-11-05 18:57:29,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:29,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408235465] [2021-11-05 18:57:29,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:29,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:57:30,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:30,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408235465] [2021-11-05 18:57:30,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408235465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:30,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:30,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:57:30,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849859593] [2021-11-05 18:57:30,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:30,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:57:30,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:30,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:57:30,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:57:30,092 INFO L87 Difference]: Start difference. First operand 8200 states and 11385 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) [2021-11-05 18:57:32,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:57:32,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:32,382 INFO L93 Difference]: Finished difference Result 16386 states and 22756 transitions. [2021-11-05 18:57:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:57:32,383 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 [2021-11-05 18:57:32,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:32,408 INFO L225 Difference]: With dead ends: 16386 [2021-11-05 18:57:32,408 INFO L226 Difference]: Without dead ends: 8200 [2021-11-05 18:57:32,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:57:32,421 INFO L933 BasicCegarLoop]: 5961 mSDtfsCounter, 0 mSDsluCounter, 5956 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2095.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11917 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2177.19ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:32,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11917 Invalid, 4 Unknown, 0 Unchecked, 10.17ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2177.19ms Time] [2021-11-05 18:57:32,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8200 states. [2021-11-05 18:57:32,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8200 to 8200. [2021-11-05 18:57:32,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8200 states, 8191 states have (on average 1.389818093028934) internal successors, (11384), 8199 states have internal predecessors, (11384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8200 states to 8200 states and 11384 transitions. [2021-11-05 18:57:32,562 INFO L78 Accepts]: Start accepts. Automaton has 8200 states and 11384 transitions. Word has length 40 [2021-11-05 18:57:32,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:32,562 INFO L470 AbstractCegarLoop]: Abstraction has 8200 states and 11384 transitions. [2021-11-05 18:57:32,564 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) [2021-11-05 18:57:32,564 INFO L276 IsEmpty]: Start isEmpty. Operand 8200 states and 11384 transitions. [2021-11-05 18:57:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 18:57:32,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:32,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:57:32,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 18:57:32,568 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:32,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:32,569 INFO L85 PathProgramCache]: Analyzing trace with hash -93621830, now seen corresponding path program 1 times [2021-11-05 18:57:32,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:32,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030433271] [2021-11-05 18:57:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:32,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:57:32,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:32,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030433271] [2021-11-05 18:57:32,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030433271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:32,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:32,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:57:32,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713406402] [2021-11-05 18:57:32,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:32,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 18:57:32,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:32,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 18:57:32,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 18:57:32,822 INFO L87 Difference]: Start difference. First operand 8200 states and 11384 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:33,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:33,482 INFO L93 Difference]: Finished difference Result 23706 states and 32782 transitions. [2021-11-05 18:57:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 18:57:33,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-05 18:57:33,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:33,529 INFO L225 Difference]: With dead ends: 23706 [2021-11-05 18:57:33,530 INFO L226 Difference]: Without dead ends: 15521 [2021-11-05 18:57:33,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 95.44ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:57:33,546 INFO L933 BasicCegarLoop]: 7083 mSDtfsCounter, 5204 mSDsluCounter, 12074 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 393.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5204 SdHoareTripleChecker+Valid, 19157 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.64ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 420.02ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:33,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5204 Valid, 19157 Invalid, 82 Unknown, 0 Unchecked, 18.64ms Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 420.02ms Time] [2021-11-05 18:57:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15521 states. [2021-11-05 18:57:33,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15521 to 8710. [2021-11-05 18:57:33,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8710 states, 8701 states have (on average 1.3828295598207103) internal successors, (12032), 8709 states have internal predecessors, (12032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:33,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8710 states to 8710 states and 12032 transitions. [2021-11-05 18:57:33,743 INFO L78 Accepts]: Start accepts. Automaton has 8710 states and 12032 transitions. Word has length 41 [2021-11-05 18:57:33,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:33,743 INFO L470 AbstractCegarLoop]: Abstraction has 8710 states and 12032 transitions. [2021-11-05 18:57:33,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:33,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8710 states and 12032 transitions. [2021-11-05 18:57:33,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 18:57:33,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:33,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:57:33,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 18:57:33,745 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:33,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:33,747 INFO L85 PathProgramCache]: Analyzing trace with hash -893390283, now seen corresponding path program 1 times [2021-11-05 18:57:33,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:33,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048855424] [2021-11-05 18:57:33,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:33,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:57:34,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:34,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048855424] [2021-11-05 18:57:34,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048855424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:34,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:34,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:57:34,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981971887] [2021-11-05 18:57:34,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:34,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 18:57:34,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:34,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 18:57:34,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 18:57:34,020 INFO L87 Difference]: Start difference. First operand 8710 states and 12032 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:34,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:34,634 INFO L93 Difference]: Finished difference Result 26254 states and 36022 transitions. [2021-11-05 18:57:34,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 18:57:34,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-11-05 18:57:34,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:34,667 INFO L225 Difference]: With dead ends: 26254 [2021-11-05 18:57:34,668 INFO L226 Difference]: Without dead ends: 17559 [2021-11-05 18:57:34,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:57:34,682 INFO L933 BasicCegarLoop]: 6520 mSDtfsCounter, 5772 mSDsluCounter, 11860 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 322.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5772 SdHoareTripleChecker+Valid, 18380 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.26ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 354.15ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:34,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5772 Valid, 18380 Invalid, 74 Unknown, 0 Unchecked, 12.26ms Time], IncrementalHoareTripleChecker [19 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 354.15ms Time] [2021-11-05 18:57:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17559 states. [2021-11-05 18:57:34,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17559 to 15477. [2021-11-05 18:57:34,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15477 states, 15468 states have (on average 1.3808507887251098) internal successors, (21359), 15476 states have internal predecessors, (21359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:34,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15477 states to 15477 states and 21359 transitions. [2021-11-05 18:57:34,930 INFO L78 Accepts]: Start accepts. Automaton has 15477 states and 21359 transitions. Word has length 42 [2021-11-05 18:57:34,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:34,930 INFO L470 AbstractCegarLoop]: Abstraction has 15477 states and 21359 transitions. [2021-11-05 18:57:34,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:34,931 INFO L276 IsEmpty]: Start isEmpty. Operand 15477 states and 21359 transitions. [2021-11-05 18:57:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-05 18:57:34,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:34,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:57:34,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 18:57:34,932 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:34,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:34,933 INFO L85 PathProgramCache]: Analyzing trace with hash 83594758, now seen corresponding path program 1 times [2021-11-05 18:57:34,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:34,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506620607] [2021-11-05 18:57:34,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:34,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:35,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:57:35,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:35,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506620607] [2021-11-05 18:57:35,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506620607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:35,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:35,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:57:35,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416593021] [2021-11-05 18:57:35,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:35,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 18:57:35,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:35,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 18:57:35,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 18:57:35,157 INFO L87 Difference]: Start difference. First operand 15477 states and 21359 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:36,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:36,103 INFO L93 Difference]: Finished difference Result 46703 states and 63941 transitions. [2021-11-05 18:57:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 18:57:36,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-05 18:57:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:36,158 INFO L225 Difference]: With dead ends: 46703 [2021-11-05 18:57:36,159 INFO L226 Difference]: Without dead ends: 31241 [2021-11-05 18:57:36,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.81ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:57:36,187 INFO L933 BasicCegarLoop]: 6517 mSDtfsCounter, 5780 mSDsluCounter, 11860 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 473.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5780 SdHoareTripleChecker+Valid, 18377 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.21ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 493.84ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:36,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5780 Valid, 18377 Invalid, 74 Unknown, 0 Unchecked, 12.21ms Time], IncrementalHoareTripleChecker [19 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 493.84ms Time] [2021-11-05 18:57:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31241 states. [2021-11-05 18:57:36,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31241 to 27104. [2021-11-05 18:57:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27104 states, 27095 states have (on average 1.3780771360029527) internal successors, (37339), 27103 states have internal predecessors, (37339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27104 states to 27104 states and 37339 transitions. [2021-11-05 18:57:36,701 INFO L78 Accepts]: Start accepts. Automaton has 27104 states and 37339 transitions. Word has length 43 [2021-11-05 18:57:36,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:36,701 INFO L470 AbstractCegarLoop]: Abstraction has 27104 states and 37339 transitions. [2021-11-05 18:57:36,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:36,702 INFO L276 IsEmpty]: Start isEmpty. Operand 27104 states and 37339 transitions. [2021-11-05 18:57:36,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-05 18:57:36,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:36,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:57:36,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 18:57:36,703 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:36,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:36,703 INFO L85 PathProgramCache]: Analyzing trace with hash 307210307, now seen corresponding path program 1 times [2021-11-05 18:57:36,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:36,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495984746] [2021-11-05 18:57:36,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:36,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:57:36,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:36,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495984746] [2021-11-05 18:57:36,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495984746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:36,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:36,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:57:36,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185827330] [2021-11-05 18:57:36,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:36,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 18:57:36,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:36,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 18:57:36,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 18:57:36,945 INFO L87 Difference]: Start difference. First operand 27104 states and 37339 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:38,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:38,043 INFO L93 Difference]: Finished difference Result 81872 states and 111737 transitions. [2021-11-05 18:57:38,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 18:57:38,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-05 18:57:38,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:38,175 INFO L225 Difference]: With dead ends: 81872 [2021-11-05 18:57:38,176 INFO L226 Difference]: Without dead ends: 54783 [2021-11-05 18:57:38,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 92.32ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:57:38,243 INFO L933 BasicCegarLoop]: 6514 mSDtfsCounter, 5788 mSDsluCounter, 11860 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 324.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5788 SdHoareTripleChecker+Valid, 18374 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.23ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 342.06ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:38,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5788 Valid, 18374 Invalid, 74 Unknown, 0 Unchecked, 11.23ms Time], IncrementalHoareTripleChecker [19 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 342.06ms Time] [2021-11-05 18:57:38,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54783 states. [2021-11-05 18:57:39,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54783 to 46543. [2021-11-05 18:57:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46543 states, 46534 states have (on average 1.3742424893626166) internal successors, (63949), 46542 states have internal predecessors, (63949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46543 states to 46543 states and 63949 transitions. [2021-11-05 18:57:39,478 INFO L78 Accepts]: Start accepts. Automaton has 46543 states and 63949 transitions. Word has length 44 [2021-11-05 18:57:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:39,478 INFO L470 AbstractCegarLoop]: Abstraction has 46543 states and 63949 transitions. [2021-11-05 18:57:39,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 46543 states and 63949 transitions. [2021-11-05 18:57:39,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-05 18:57:39,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:39,479 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:57:39,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 18:57:39,479 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:39,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:39,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1998294810, now seen corresponding path program 1 times [2021-11-05 18:57:39,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:39,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111408783] [2021-11-05 18:57:39,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:39,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:39,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 18:57:39,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:39,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111408783] [2021-11-05 18:57:39,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111408783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:39,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:39,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:57:39,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814510709] [2021-11-05 18:57:39,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:39,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:57:39,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:39,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:57:39,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:57:39,766 INFO L87 Difference]: Start difference. First operand 46543 states and 63949 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:40,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:40,404 INFO L93 Difference]: Finished difference Result 46543 states and 63949 transitions. [2021-11-05 18:57:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:57:40,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-05 18:57:40,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:40,466 INFO L225 Difference]: With dead ends: 46543 [2021-11-05 18:57:40,466 INFO L226 Difference]: Without dead ends: 46541 [2021-11-05 18:57:40,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:57:40,479 INFO L933 BasicCegarLoop]: 5957 mSDtfsCounter, 321 mSDsluCounter, 5562 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 158.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 11519 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.67ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 168.17ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:40,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 11519 Invalid, 35 Unknown, 0 Unchecked, 4.67ms Time], IncrementalHoareTripleChecker [11 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 168.17ms Time] [2021-11-05 18:57:40,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46541 states. [2021-11-05 18:57:41,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46541 to 46541. [2021-11-05 18:57:41,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46541 states, 46533 states have (on average 1.373906689876002) internal successors, (63932), 46540 states have internal predecessors, (63932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46541 states to 46541 states and 63932 transitions. [2021-11-05 18:57:41,246 INFO L78 Accepts]: Start accepts. Automaton has 46541 states and 63932 transitions. Word has length 44 [2021-11-05 18:57:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:41,247 INFO L470 AbstractCegarLoop]: Abstraction has 46541 states and 63932 transitions. [2021-11-05 18:57:41,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:41,247 INFO L276 IsEmpty]: Start isEmpty. Operand 46541 states and 63932 transitions. [2021-11-05 18:57:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 18:57:41,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:41,248 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 18:57:41,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 18:57:41,249 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:41,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:41,249 INFO L85 PathProgramCache]: Analyzing trace with hash 750563296, now seen corresponding path program 1 times [2021-11-05 18:57:41,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:41,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893212446] [2021-11-05 18:57:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:41,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-05 18:57:41,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:41,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893212446] [2021-11-05 18:57:41,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893212446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:41,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:41,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 18:57:41,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769219281] [2021-11-05 18:57:41,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:41,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 18:57:41,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:41,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 18:57:41,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:57:41,531 INFO L87 Difference]: Start difference. First operand 46541 states and 63932 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:43,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:43,809 INFO L93 Difference]: Finished difference Result 128501 states and 175688 transitions. [2021-11-05 18:57:43,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 18:57:43,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-05 18:57:43,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:44,024 INFO L225 Difference]: With dead ends: 128501 [2021-11-05 18:57:44,024 INFO L226 Difference]: Without dead ends: 81975 [2021-11-05 18:57:44,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 244.92ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 18:57:44,136 INFO L933 BasicCegarLoop]: 10551 mSDtfsCounter, 6882 mSDsluCounter, 26391 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 671.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6882 SdHoareTripleChecker+Valid, 36942 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.19ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 703.34ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:44,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6882 Valid, 36942 Invalid, 159 Unknown, 0 Unchecked, 16.19ms Time], IncrementalHoareTripleChecker [36 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 703.34ms Time] [2021-11-05 18:57:44,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81975 states. [2021-11-05 18:57:45,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81975 to 46621. [2021-11-05 18:57:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46621 states, 46613 states have (on average 1.3732649690000645) internal successors, (64012), 46620 states have internal predecessors, (64012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:45,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46621 states to 46621 states and 64012 transitions. [2021-11-05 18:57:45,367 INFO L78 Accepts]: Start accepts. Automaton has 46621 states and 64012 transitions. Word has length 49 [2021-11-05 18:57:45,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:45,367 INFO L470 AbstractCegarLoop]: Abstraction has 46621 states and 64012 transitions. [2021-11-05 18:57:45,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 46621 states and 64012 transitions. [2021-11-05 18:57:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-05 18:57:45,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:45,381 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 18:57:45,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 18:57:45,382 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:45,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:45,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1159627793, now seen corresponding path program 1 times [2021-11-05 18:57:45,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:45,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700444507] [2021-11-05 18:57:45,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:45,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 18:57:45,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:45,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700444507] [2021-11-05 18:57:45,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700444507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:45,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:45,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:57:45,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146804551] [2021-11-05 18:57:45,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:45,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:57:45,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:45,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:57:45,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:57:45,883 INFO L87 Difference]: Start difference. First operand 46621 states and 64012 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:46,981 INFO L93 Difference]: Finished difference Result 93323 states and 128121 transitions. [2021-11-05 18:57:46,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:57:46,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 120 [2021-11-05 18:57:46,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:47,047 INFO L225 Difference]: With dead ends: 93323 [2021-11-05 18:57:47,048 INFO L226 Difference]: Without dead ends: 46717 [2021-11-05 18:57:47,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:57:47,087 INFO L933 BasicCegarLoop]: 5953 mSDtfsCounter, 5 mSDsluCounter, 5950 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 195.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11903 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 210.84ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:47,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 11903 Invalid, 12 Unknown, 0 Unchecked, 5.20ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 210.84ms Time] [2021-11-05 18:57:47,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46717 states. [2021-11-05 18:57:47,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46717 to 46637. [2021-11-05 18:57:47,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46637 states, 46629 states have (on average 1.3731368890604558) internal successors, (64028), 46636 states have internal predecessors, (64028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:48,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46637 states to 46637 states and 64028 transitions. [2021-11-05 18:57:48,024 INFO L78 Accepts]: Start accepts. Automaton has 46637 states and 64028 transitions. Word has length 120 [2021-11-05 18:57:48,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:48,024 INFO L470 AbstractCegarLoop]: Abstraction has 46637 states and 64028 transitions. [2021-11-05 18:57:48,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:48,025 INFO L276 IsEmpty]: Start isEmpty. Operand 46637 states and 64028 transitions. [2021-11-05 18:57:48,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-05 18:57:48,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:48,027 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 18:57:48,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 18:57:48,028 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:48,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:48,028 INFO L85 PathProgramCache]: Analyzing trace with hash 160933319, now seen corresponding path program 1 times [2021-11-05 18:57:48,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:48,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676412460] [2021-11-05 18:57:48,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:48,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:48,375 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 18:57:48,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:48,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676412460] [2021-11-05 18:57:48,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676412460] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 18:57:48,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646779921] [2021-11-05 18:57:48,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:48,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 18:57:48,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 18:57:48,378 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) [2021-11-05 18:57:48,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 18:57:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:49,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 4244 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 18:57:49,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 18:57:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 18:57:50,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 18:57:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 18:57:51,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646779921] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 18:57:51,219 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 18:57:51,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2021-11-05 18:57:51,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086750949] [2021-11-05 18:57:51,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 18:57:51,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 18:57:51,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:51,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 18:57:51,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:57:51,220 INFO L87 Difference]: Start difference. First operand 46637 states and 64028 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) [2021-11-05 18:57:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:52,258 INFO L93 Difference]: Finished difference Result 93355 states and 128153 transitions. [2021-11-05 18:57:52,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 18:57:52,259 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 126 [2021-11-05 18:57:52,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:52,344 INFO L225 Difference]: With dead ends: 93355 [2021-11-05 18:57:52,345 INFO L226 Difference]: Without dead ends: 46733 [2021-11-05 18:57:52,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 88.75ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:57:52,405 INFO L933 BasicCegarLoop]: 5953 mSDtfsCounter, 10 mSDsluCounter, 5951 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 212.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11904 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.03ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 231.44ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:52,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 11904 Invalid, 20 Unknown, 0 Unchecked, 5.03ms Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 231.44ms Time] [2021-11-05 18:57:52,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46733 states. [2021-11-05 18:57:53,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46733 to 46733. [2021-11-05 18:57:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46733 states, 46725 states have (on average 1.3723702514713751) internal successors, (64124), 46732 states have internal predecessors, (64124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:53,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46733 states to 46733 states and 64124 transitions. [2021-11-05 18:57:53,534 INFO L78 Accepts]: Start accepts. Automaton has 46733 states and 64124 transitions. Word has length 126 [2021-11-05 18:57:53,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:53,534 INFO L470 AbstractCegarLoop]: Abstraction has 46733 states and 64124 transitions. [2021-11-05 18:57:53,534 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) [2021-11-05 18:57:53,535 INFO L276 IsEmpty]: Start isEmpty. Operand 46733 states and 64124 transitions. [2021-11-05 18:57:53,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-05 18:57:53,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:53,537 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 18:57:53,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 18:57:53,751 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,SelfDestructingSolverStorable10 [2021-11-05 18:57:53,751 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:53,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:53,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2039287199, now seen corresponding path program 2 times [2021-11-05 18:57:53,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:53,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009137489] [2021-11-05 18:57:53,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:53,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:54,189 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 18:57:54,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:54,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009137489] [2021-11-05 18:57:54,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009137489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:54,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:54,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 18:57:54,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48838517] [2021-11-05 18:57:54,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:54,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 18:57:54,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:54,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 18:57:54,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 18:57:54,190 INFO L87 Difference]: Start difference. First operand 46733 states and 64124 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:57:55,990 INFO L93 Difference]: Finished difference Result 136523 states and 187961 transitions. [2021-11-05 18:57:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 18:57:55,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 132 [2021-11-05 18:57:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:57:56,141 INFO L225 Difference]: With dead ends: 136523 [2021-11-05 18:57:56,141 INFO L226 Difference]: Without dead ends: 89805 [2021-11-05 18:57:56,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 99.26ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:57:56,202 INFO L933 BasicCegarLoop]: 11600 mSDtfsCounter, 11300 mSDsluCounter, 11913 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11300 SdHoareTripleChecker+Valid, 23513 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.83ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 137.27ms IncrementalHoareTripleChecker+Time [2021-11-05 18:57:56,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11300 Valid, 23513 Invalid, 22 Unknown, 0 Unchecked, 14.83ms Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 137.27ms Time] [2021-11-05 18:57:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89805 states. [2021-11-05 18:57:57,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89805 to 46765. [2021-11-05 18:57:57,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46765 states, 46757 states have (on average 1.372115405179973) internal successors, (64156), 46764 states have internal predecessors, (64156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46765 states to 46765 states and 64156 transitions. [2021-11-05 18:57:57,820 INFO L78 Accepts]: Start accepts. Automaton has 46765 states and 64156 transitions. Word has length 132 [2021-11-05 18:57:57,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:57:57,820 INFO L470 AbstractCegarLoop]: Abstraction has 46765 states and 64156 transitions. [2021-11-05 18:57:57,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:57:57,821 INFO L276 IsEmpty]: Start isEmpty. Operand 46765 states and 64156 transitions. [2021-11-05 18:57:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-05 18:57:57,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:57:57,825 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:57:57,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 18:57:57,825 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 18:57:57,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:57:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash 66372555, now seen corresponding path program 1 times [2021-11-05 18:57:57,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:57:57,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673511978] [2021-11-05 18:57:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:57:57,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:57:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:57:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 18:57:58,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:57:58,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673511978] [2021-11-05 18:57:58,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673511978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:57:58,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:57:58,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 18:57:58,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55592958] [2021-11-05 18:57:58,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:57:58,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 18:57:58,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:57:58,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 18:57:58,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:57:58,297 INFO L87 Difference]: Start difference. First operand 46765 states and 64156 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:58:01,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:58:01,874 INFO L93 Difference]: Finished difference Result 182595 states and 251325 transitions. [2021-11-05 18:58:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 18:58:01,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 0 states have call successors, (0), 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 [2021-11-05 18:58:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:58:02,162 INFO L225 Difference]: With dead ends: 182595 [2021-11-05 18:58:02,162 INFO L226 Difference]: Without dead ends: 135845 [2021-11-05 18:58:02,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 206.76ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 18:58:02,276 INFO L933 BasicCegarLoop]: 6521 mSDtfsCounter, 23498 mSDsluCounter, 29094 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23498 SdHoareTripleChecker+Valid, 35615 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.39ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.02ms IncrementalHoareTripleChecker+Time [2021-11-05 18:58:02,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23498 Valid, 35615 Invalid, 18 Unknown, 0 Unchecked, 24.39ms Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 101.02ms Time] [2021-11-05 18:58:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135845 states.