./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.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 a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 22:33:17,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 22:33:17,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 22:33:17,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 22:33:17,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 22:33:17,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 22:33:17,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 22:33:17,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 22:33:17,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 22:33:17,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 22:33:17,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 22:33:17,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 22:33:17,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 22:33:17,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 22:33:17,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 22:33:17,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 22:33:17,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 22:33:17,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 22:33:17,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 22:33:17,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 22:33:17,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 22:33:17,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 22:33:17,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 22:33:17,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 22:33:17,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 22:33:17,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 22:33:17,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 22:33:17,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 22:33:17,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 22:33:17,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 22:33:17,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 22:33:17,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 22:33:17,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 22:33:17,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 22:33:17,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 22:33:17,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 22:33:17,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 22:33:17,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 22:33:17,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 22:33:17,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 22:33:17,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 22:33:17,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 22:33:17,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 22:33:17,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 22:33:17,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 22:33:17,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 22:33:17,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 22:33:17,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 22:33:17,892 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 22:33:17,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 22:33:17,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 22:33:17,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 22:33:17,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 22:33:17,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 22:33:17,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 22:33:17,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 22:33:17,894 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 22:33:17,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 22:33:17,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 22:33:17,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 22:33:17,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 22:33:17,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 22:33:17,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 22:33:17,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 22:33:17,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 22:33:17,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 22:33:17,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 22:33:17,895 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 22:33:17,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 22:33:17,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 22:33:17,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 22:33:17,896 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 [2021-11-22 22:33:18,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 22:33:18,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 22:33:18,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 22:33:18,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 22:33:18,148 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 22:33:18,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-22 22:33:18,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7711b774a/3813286a1b4b4d25bb00998069ea02f9/FLAG81e395d00 [2021-11-22 22:33:18,674 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 22:33:18,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-22 22:33:18,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7711b774a/3813286a1b4b4d25bb00998069ea02f9/FLAG81e395d00 [2021-11-22 22:33:18,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7711b774a/3813286a1b4b4d25bb00998069ea02f9 [2021-11-22 22:33:18,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 22:33:18,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 22:33:18,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 22:33:18,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 22:33:18,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 22:33:18,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:33:18" (1/1) ... [2021-11-22 22:33:18,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e1ba4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:18, skipping insertion in model container [2021-11-22 22:33:18,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:33:18" (1/1) ... [2021-11-22 22:33:18,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 22:33:18,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 22:33:19,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2021-11-22 22:33:19,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 22:33:19,449 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 22:33:19,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2021-11-22 22:33:19,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 22:33:19,633 INFO L208 MainTranslator]: Completed translation [2021-11-22 22:33:19,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19 WrapperNode [2021-11-22 22:33:19,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 22:33:19,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 22:33:19,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 22:33:19,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 22:33:19,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:19,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:19,835 INFO L137 Inliner]: procedures = 128, calls = 740, calls flagged for inlining = 248, calls inlined = 574, statements flattened = 6029 [2021-11-22 22:33:19,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 22:33:19,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 22:33:19,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 22:33:19,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 22:33:19,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:19,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:19,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:19,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:19,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:19,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:19,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:19,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 22:33:20,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 22:33:20,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 22:33:20,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 22:33:20,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (1/1) ... [2021-11-22 22:33:20,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 22:33:20,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 22:33:20,061 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) [2021-11-22 22:33:20,079 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 [2021-11-22 22:33:20,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 22:33:20,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 22:33:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 22:33:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 22:33:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 22:33:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 22:33:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 22:33:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-22 22:33:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 22:33:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 22:33:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 22:33:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 22:33:20,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 22:33:20,437 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 22:33:20,438 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 22:33:21,983 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 22:33:21,992 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 22:33:21,993 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 22:33:21,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:33:21 BoogieIcfgContainer [2021-11-22 22:33:21,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 22:33:21,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 22:33:21,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 22:33:21,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 22:33:21,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:33:18" (1/3) ... [2021-11-22 22:33:21,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237810bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:33:21, skipping insertion in model container [2021-11-22 22:33:21,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:19" (2/3) ... [2021-11-22 22:33:22,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237810bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:33:21, skipping insertion in model container [2021-11-22 22:33:22,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:33:21" (3/3) ... [2021-11-22 22:33:22,001 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-22 22:33:22,004 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 22:33:22,004 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-22 22:33:22,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 22:33:22,044 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 [2021-11-22 22:33:22,044 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-22 22:33:22,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 1028 states, 1018 states have (on average 1.243614931237721) internal successors, (1266), 1027 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:22,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 22:33:22,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:22,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:33:22,082 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:22,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:22,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1316162579, now seen corresponding path program 1 times [2021-11-22 22:33:22,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:22,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282860583] [2021-11-22 22:33:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:22,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:33:22,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:22,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282860583] [2021-11-22 22:33:22,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282860583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:22,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:22,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:33:22,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466470407] [2021-11-22 22:33:22,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:22,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:33:22,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:22,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:33:22,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:22,483 INFO L87 Difference]: Start difference. First operand has 1028 states, 1018 states have (on average 1.243614931237721) internal successors, (1266), 1027 states have internal predecessors, (1266), 0 states have call successors, (0), 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 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:22,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:22,654 INFO L93 Difference]: Finished difference Result 3041 states and 3752 transitions. [2021-11-22 22:33:22,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:33:22,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-22 22:33:22,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:22,670 INFO L225 Difference]: With dead ends: 3041 [2021-11-22 22:33:22,671 INFO L226 Difference]: Without dead ends: 2012 [2021-11-22 22:33:22,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:22,678 INFO L933 BasicCegarLoop]: 1232 mSDtfsCounter, 1205 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:22,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 2451 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:33:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2021-11-22 22:33:22,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 2000. [2021-11-22 22:33:22,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1991 states have (on average 1.2209944751381216) internal successors, (2431), 1999 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2431 transitions. [2021-11-22 22:33:22,759 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2431 transitions. Word has length 14 [2021-11-22 22:33:22,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:22,760 INFO L470 AbstractCegarLoop]: Abstraction has 2000 states and 2431 transitions. [2021-11-22 22:33:22,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:22,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2431 transitions. [2021-11-22 22:33:22,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 22:33:22,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:22,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:33:22,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 22:33:22,762 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)] === [2021-11-22 22:33:22,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:22,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1715219357, now seen corresponding path program 1 times [2021-11-22 22:33:22,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:22,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856483842] [2021-11-22 22:33:22,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:22,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:33:22,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:22,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856483842] [2021-11-22 22:33:22,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856483842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:22,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:22,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:33:22,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931397361] [2021-11-22 22:33:22,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:22,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:33:22,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:22,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:33:22,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:22,809 INFO L87 Difference]: Start difference. First operand 2000 states and 2431 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:22,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:22,906 INFO L93 Difference]: Finished difference Result 5751 states and 6977 transitions. [2021-11-22 22:33:22,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:33:22,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-22 22:33:22,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:22,918 INFO L225 Difference]: With dead ends: 5751 [2021-11-22 22:33:22,918 INFO L226 Difference]: Without dead ends: 3754 [2021-11-22 22:33:22,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:22,923 INFO L933 BasicCegarLoop]: 1244 mSDtfsCounter, 1063 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:22,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 2455 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2021-11-22 22:33:22,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3742. [2021-11-22 22:33:22,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3733 states have (on average 1.2151084918296275) internal successors, (4536), 3741 states have internal predecessors, (4536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4536 transitions. [2021-11-22 22:33:23,002 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4536 transitions. Word has length 17 [2021-11-22 22:33:23,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:23,002 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4536 transitions. [2021-11-22 22:33:23,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4536 transitions. [2021-11-22 22:33:23,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 22:33:23,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:23,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:33:23,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 22:33:23,004 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:23,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:23,005 INFO L85 PathProgramCache]: Analyzing trace with hash -78706964, now seen corresponding path program 1 times [2021-11-22 22:33:23,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:23,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948699405] [2021-11-22 22:33:23,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:23,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:33:23,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:23,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948699405] [2021-11-22 22:33:23,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948699405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:23,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:23,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:33:23,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136772509] [2021-11-22 22:33:23,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:23,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:33:23,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:23,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:33:23,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:23,075 INFO L87 Difference]: Start difference. First operand 3742 states and 4536 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:23,146 INFO L93 Difference]: Finished difference Result 3762 states and 4554 transitions. [2021-11-22 22:33:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:33:23,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-22 22:33:23,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:23,156 INFO L225 Difference]: With dead ends: 3762 [2021-11-22 22:33:23,156 INFO L226 Difference]: Without dead ends: 3752 [2021-11-22 22:33:23,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:23,157 INFO L933 BasicCegarLoop]: 1237 mSDtfsCounter, 1224 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:23,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1224 Valid, 1246 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2021-11-22 22:33:23,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3742. [2021-11-22 22:33:23,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3733 states have (on average 1.2148406107688186) internal successors, (4535), 3741 states have internal predecessors, (4535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4535 transitions. [2021-11-22 22:33:23,236 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4535 transitions. Word has length 17 [2021-11-22 22:33:23,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:23,236 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4535 transitions. [2021-11-22 22:33:23,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4535 transitions. [2021-11-22 22:33:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 22:33:23,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:23,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:33:23,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 22:33:23,238 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:23,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:23,238 INFO L85 PathProgramCache]: Analyzing trace with hash -76859922, now seen corresponding path program 1 times [2021-11-22 22:33:23,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:23,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151811509] [2021-11-22 22:33:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:23,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:33:23,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:23,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151811509] [2021-11-22 22:33:23,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151811509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:23,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:23,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:33:23,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496139918] [2021-11-22 22:33:23,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:23,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:33:23,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:23,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:33:23,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:23,282 INFO L87 Difference]: Start difference. First operand 3742 states and 4535 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:23,362 INFO L93 Difference]: Finished difference Result 3742 states and 4535 transitions. [2021-11-22 22:33:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:33:23,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-22 22:33:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:23,373 INFO L225 Difference]: With dead ends: 3742 [2021-11-22 22:33:23,373 INFO L226 Difference]: Without dead ends: 3740 [2021-11-22 22:33:23,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:23,382 INFO L933 BasicCegarLoop]: 1226 mSDtfsCounter, 1212 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:23,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1212 Valid, 1226 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:23,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2021-11-22 22:33:23,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3740. [2021-11-22 22:33:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3740 states, 3732 states have (on average 1.2146302250803858) internal successors, (4533), 3739 states have internal predecessors, (4533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 4533 transitions. [2021-11-22 22:33:23,513 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 4533 transitions. Word has length 17 [2021-11-22 22:33:23,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:23,513 INFO L470 AbstractCegarLoop]: Abstraction has 3740 states and 4533 transitions. [2021-11-22 22:33:23,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 4533 transitions. [2021-11-22 22:33:23,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 22:33:23,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:23,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:33:23,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 22:33:23,515 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:23,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:23,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1912310852, now seen corresponding path program 1 times [2021-11-22 22:33:23,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:23,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49236100] [2021-11-22 22:33:23,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:23,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:33:23,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:23,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49236100] [2021-11-22 22:33:23,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49236100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:23,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:23,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:33:23,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002498662] [2021-11-22 22:33:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:23,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:33:23,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:23,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:33:23,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:23,564 INFO L87 Difference]: Start difference. First operand 3740 states and 4533 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:23,648 INFO L93 Difference]: Finished difference Result 3740 states and 4533 transitions. [2021-11-22 22:33:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:33:23,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-11-22 22:33:23,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:23,659 INFO L225 Difference]: With dead ends: 3740 [2021-11-22 22:33:23,659 INFO L226 Difference]: Without dead ends: 3738 [2021-11-22 22:33:23,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:23,661 INFO L933 BasicCegarLoop]: 1224 mSDtfsCounter, 1209 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:23,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 1224 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:23,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2021-11-22 22:33:23,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3738. [2021-11-22 22:33:23,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3738 states, 3731 states have (on average 1.2144197266148486) internal successors, (4531), 3737 states have internal predecessors, (4531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3738 states to 3738 states and 4531 transitions. [2021-11-22 22:33:23,788 INFO L78 Accepts]: Start accepts. Automaton has 3738 states and 4531 transitions. Word has length 18 [2021-11-22 22:33:23,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:23,789 INFO L470 AbstractCegarLoop]: Abstraction has 3738 states and 4531 transitions. [2021-11-22 22:33:23,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:23,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3738 states and 4531 transitions. [2021-11-22 22:33:23,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 22:33:23,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:23,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:33:23,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 22:33:23,790 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:23,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:23,791 INFO L85 PathProgramCache]: Analyzing trace with hash -847904583, now seen corresponding path program 1 times [2021-11-22 22:33:23,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:23,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476800897] [2021-11-22 22:33:23,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:23,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:23,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:33:23,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:23,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476800897] [2021-11-22 22:33:23,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476800897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:23,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:23,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:33:23,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394371816] [2021-11-22 22:33:23,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:23,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:33:23,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:23,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:33:23,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:23,828 INFO L87 Difference]: Start difference. First operand 3738 states and 4531 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:24,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:24,017 INFO L93 Difference]: Finished difference Result 11162 states and 13540 transitions. [2021-11-22 22:33:24,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:33:24,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-22 22:33:24,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:24,039 INFO L225 Difference]: With dead ends: 11162 [2021-11-22 22:33:24,040 INFO L226 Difference]: Without dead ends: 7421 [2021-11-22 22:33:24,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:24,049 INFO L933 BasicCegarLoop]: 1307 mSDtfsCounter, 1192 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:24,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1192 Valid, 2494 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:24,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7421 states. [2021-11-22 22:33:24,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7421 to 7355. [2021-11-22 22:33:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7355 states, 7348 states have (on average 1.2129831246597713) internal successors, (8913), 7354 states have internal predecessors, (8913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:24,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7355 states to 7355 states and 8913 transitions. [2021-11-22 22:33:24,333 INFO L78 Accepts]: Start accepts. Automaton has 7355 states and 8913 transitions. Word has length 19 [2021-11-22 22:33:24,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:24,333 INFO L470 AbstractCegarLoop]: Abstraction has 7355 states and 8913 transitions. [2021-11-22 22:33:24,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:24,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7355 states and 8913 transitions. [2021-11-22 22:33:24,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-22 22:33:24,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:24,336 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:33:24,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 22:33:24,336 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:24,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:24,337 INFO L85 PathProgramCache]: Analyzing trace with hash -2079170589, now seen corresponding path program 1 times [2021-11-22 22:33:24,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:24,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244468014] [2021-11-22 22:33:24,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:24,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:33:24,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:24,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244468014] [2021-11-22 22:33:24,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244468014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:24,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:24,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:33:24,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68222954] [2021-11-22 22:33:24,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:24,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:33:24,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:24,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:33:24,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:24,424 INFO L87 Difference]: Start difference. First operand 7355 states and 8913 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:24,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:24,790 INFO L93 Difference]: Finished difference Result 18239 states and 22118 transitions. [2021-11-22 22:33:24,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:33:24,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-22 22:33:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:24,817 INFO L225 Difference]: With dead ends: 18239 [2021-11-22 22:33:24,818 INFO L226 Difference]: Without dead ends: 10887 [2021-11-22 22:33:24,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:24,830 INFO L933 BasicCegarLoop]: 2280 mSDtfsCounter, 1070 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 3488 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:24,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 3488 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:24,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2021-11-22 22:33:25,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 10879. [2021-11-22 22:33:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10879 states, 10872 states have (on average 1.2123804267844003) internal successors, (13181), 10878 states have internal predecessors, (13181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:25,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10879 states to 10879 states and 13181 transitions. [2021-11-22 22:33:25,097 INFO L78 Accepts]: Start accepts. Automaton has 10879 states and 13181 transitions. Word has length 37 [2021-11-22 22:33:25,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:25,097 INFO L470 AbstractCegarLoop]: Abstraction has 10879 states and 13181 transitions. [2021-11-22 22:33:25,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:25,098 INFO L276 IsEmpty]: Start isEmpty. Operand 10879 states and 13181 transitions. [2021-11-22 22:33:25,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-22 22:33:25,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:25,101 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-22 22:33:25,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 22:33:25,101 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:25,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash 686159553, now seen corresponding path program 1 times [2021-11-22 22:33:25,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:25,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148490469] [2021-11-22 22:33:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:25,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 22:33:25,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:25,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148490469] [2021-11-22 22:33:25,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148490469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:25,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:25,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:33:25,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955052834] [2021-11-22 22:33:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:25,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:33:25,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:33:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:33:25,196 INFO L87 Difference]: Start difference. First operand 10879 states and 13181 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) [2021-11-22 22:33:25,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:25,685 INFO L93 Difference]: Finished difference Result 32464 states and 39330 transitions. [2021-11-22 22:33:25,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 22:33:25,686 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 49 [2021-11-22 22:33:25,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:25,728 INFO L225 Difference]: With dead ends: 32464 [2021-11-22 22:33:25,728 INFO L226 Difference]: Without dead ends: 21588 [2021-11-22 22:33:25,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:33:25,749 INFO L933 BasicCegarLoop]: 2359 mSDtfsCounter, 2420 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2420 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:25,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2420 Valid, 3512 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21588 states. [2021-11-22 22:33:26,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21588 to 10879. [2021-11-22 22:33:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10879 states, 10872 states have (on average 1.2121044885945549) internal successors, (13178), 10878 states have internal predecessors, (13178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:26,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10879 states to 10879 states and 13178 transitions. [2021-11-22 22:33:26,256 INFO L78 Accepts]: Start accepts. Automaton has 10879 states and 13178 transitions. Word has length 49 [2021-11-22 22:33:26,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:26,256 INFO L470 AbstractCegarLoop]: Abstraction has 10879 states and 13178 transitions. [2021-11-22 22:33:26,257 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) [2021-11-22 22:33:26,257 INFO L276 IsEmpty]: Start isEmpty. Operand 10879 states and 13178 transitions. [2021-11-22 22:33:26,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 22:33:26,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:26,262 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-22 22:33:26,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 22:33:26,263 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:26,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:26,263 INFO L85 PathProgramCache]: Analyzing trace with hash -215034536, now seen corresponding path program 1 times [2021-11-22 22:33:26,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:26,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221650482] [2021-11-22 22:33:26,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:26,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 22:33:26,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:26,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221650482] [2021-11-22 22:33:26,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221650482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:26,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:26,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:33:26,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005818949] [2021-11-22 22:33:26,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:26,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:33:26,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:26,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:33:26,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:26,346 INFO L87 Difference]: Start difference. First operand 10879 states and 13178 transitions. Second operand has 3 states, 3 states have (on average 14.0) 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) [2021-11-22 22:33:26,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:26,862 INFO L93 Difference]: Finished difference Result 21755 states and 26353 transitions. [2021-11-22 22:33:26,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:33:26,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) 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 50 [2021-11-22 22:33:26,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:26,880 INFO L225 Difference]: With dead ends: 21755 [2021-11-22 22:33:26,880 INFO L226 Difference]: Without dead ends: 10879 [2021-11-22 22:33:26,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:33:26,895 INFO L933 BasicCegarLoop]: 2310 mSDtfsCounter, 1182 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 3503 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:26,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 3503 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:33:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2021-11-22 22:33:27,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 10863. [2021-11-22 22:33:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10863 states, 10856 states have (on average 1.2111274871039057) internal successors, (13148), 10862 states have internal predecessors, (13148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:27,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10863 states to 10863 states and 13148 transitions. [2021-11-22 22:33:27,194 INFO L78 Accepts]: Start accepts. Automaton has 10863 states and 13148 transitions. Word has length 50 [2021-11-22 22:33:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:27,194 INFO L470 AbstractCegarLoop]: Abstraction has 10863 states and 13148 transitions. [2021-11-22 22:33:27,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) 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) [2021-11-22 22:33:27,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10863 states and 13148 transitions. [2021-11-22 22:33:27,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 22:33:27,196 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:27,197 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-22 22:33:27,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 22:33:27,197 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:27,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:27,197 INFO L85 PathProgramCache]: Analyzing trace with hash -608061546, now seen corresponding path program 1 times [2021-11-22 22:33:27,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:27,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118678475] [2021-11-22 22:33:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:27,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:27,249 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 22:33:27,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:27,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118678475] [2021-11-22 22:33:27,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118678475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:27,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:27,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 22:33:27,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224000669] [2021-11-22 22:33:27,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:27,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 22:33:27,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:27,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 22:33:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:33:27,250 INFO L87 Difference]: Start difference. First operand 10863 states and 13148 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 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) [2021-11-22 22:33:28,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:28,191 INFO L93 Difference]: Finished difference Result 32188 states and 38965 transitions. [2021-11-22 22:33:28,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 22:33:28,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 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 50 [2021-11-22 22:33:28,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:28,249 INFO L225 Difference]: With dead ends: 32188 [2021-11-22 22:33:28,249 INFO L226 Difference]: Without dead ends: 32153 [2021-11-22 22:33:28,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 22:33:28,259 INFO L933 BasicCegarLoop]: 2452 mSDtfsCounter, 6714 mSDsluCounter, 7044 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6714 SdHoareTripleChecker+Valid, 9496 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:28,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6714 Valid, 9496 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:28,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32153 states. [2021-11-22 22:33:28,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32153 to 10828. [2021-11-22 22:33:28,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10828 states, 10823 states have (on average 1.2108472697034094) internal successors, (13105), 10827 states have internal predecessors, (13105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:28,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10828 states to 10828 states and 13105 transitions. [2021-11-22 22:33:28,778 INFO L78 Accepts]: Start accepts. Automaton has 10828 states and 13105 transitions. Word has length 50 [2021-11-22 22:33:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:28,779 INFO L470 AbstractCegarLoop]: Abstraction has 10828 states and 13105 transitions. [2021-11-22 22:33:28,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 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) [2021-11-22 22:33:28,779 INFO L276 IsEmpty]: Start isEmpty. Operand 10828 states and 13105 transitions. [2021-11-22 22:33:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-22 22:33:28,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:28,783 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-22 22:33:28,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 22:33:28,784 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:28,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:28,784 INFO L85 PathProgramCache]: Analyzing trace with hash -485180147, now seen corresponding path program 1 times [2021-11-22 22:33:28,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:28,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345569556] [2021-11-22 22:33:28,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:28,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:28,858 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-22 22:33:28,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:28,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345569556] [2021-11-22 22:33:28,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345569556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:28,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:28,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 22:33:28,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004461343] [2021-11-22 22:33:28,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:28,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 22:33:28,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:28,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 22:33:28,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:33:28,860 INFO L87 Difference]: Start difference. First operand 10828 states and 13105 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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) [2021-11-22 22:33:30,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:30,294 INFO L93 Difference]: Finished difference Result 32124 states and 38891 transitions. [2021-11-22 22:33:30,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 22:33:30,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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 52 [2021-11-22 22:33:30,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:30,336 INFO L225 Difference]: With dead ends: 32124 [2021-11-22 22:33:30,337 INFO L226 Difference]: Without dead ends: 32093 [2021-11-22 22:33:30,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 22:33:30,347 INFO L933 BasicCegarLoop]: 3476 mSDtfsCounter, 5591 mSDsluCounter, 6985 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5591 SdHoareTripleChecker+Valid, 10461 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:30,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5591 Valid, 10461 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:30,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32093 states. [2021-11-22 22:33:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32093 to 10797. [2021-11-22 22:33:31,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10797 states, 10794 states have (on average 1.2106725958866036) internal successors, (13068), 10796 states have internal predecessors, (13068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:31,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10797 states to 10797 states and 13068 transitions. [2021-11-22 22:33:31,012 INFO L78 Accepts]: Start accepts. Automaton has 10797 states and 13068 transitions. Word has length 52 [2021-11-22 22:33:31,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:31,012 INFO L470 AbstractCegarLoop]: Abstraction has 10797 states and 13068 transitions. [2021-11-22 22:33:31,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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) [2021-11-22 22:33:31,013 INFO L276 IsEmpty]: Start isEmpty. Operand 10797 states and 13068 transitions. [2021-11-22 22:33:31,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-22 22:33:31,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:31,016 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-22 22:33:31,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 22:33:31,016 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:31,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:31,017 INFO L85 PathProgramCache]: Analyzing trace with hash 284192835, now seen corresponding path program 1 times [2021-11-22 22:33:31,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:31,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748403359] [2021-11-22 22:33:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:31,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:31,061 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 22:33:31,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:31,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748403359] [2021-11-22 22:33:31,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748403359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:31,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:31,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 22:33:31,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814591731] [2021-11-22 22:33:31,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:31,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 22:33:31,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:31,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 22:33:31,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:33:31,063 INFO L87 Difference]: Start difference. First operand 10797 states and 13068 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:33,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:33,522 INFO L93 Difference]: Finished difference Result 53363 states and 64602 transitions. [2021-11-22 22:33:33,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 22:33:33,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-22 22:33:33,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:33,586 INFO L225 Difference]: With dead ends: 53363 [2021-11-22 22:33:33,586 INFO L226 Difference]: Without dead ends: 48062 [2021-11-22 22:33:33,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 22:33:33,606 INFO L933 BasicCegarLoop]: 3459 mSDtfsCounter, 8027 mSDsluCounter, 7880 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8027 SdHoareTripleChecker+Valid, 11339 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:33,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8027 Valid, 11339 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:33,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48062 states. [2021-11-22 22:33:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48062 to 10795. [2021-11-22 22:33:34,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10795 states, 10792 states have (on average 1.2105263157894737) internal successors, (13064), 10794 states have internal predecessors, (13064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:34,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10795 states to 10795 states and 13064 transitions. [2021-11-22 22:33:34,619 INFO L78 Accepts]: Start accepts. Automaton has 10795 states and 13064 transitions. Word has length 58 [2021-11-22 22:33:34,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:34,619 INFO L470 AbstractCegarLoop]: Abstraction has 10795 states and 13064 transitions. [2021-11-22 22:33:34,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:34,620 INFO L276 IsEmpty]: Start isEmpty. Operand 10795 states and 13064 transitions. [2021-11-22 22:33:34,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-22 22:33:34,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:33:34,625 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-22 22:33:34,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 22:33:34,625 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-22 22:33:34,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:33:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash -747325010, now seen corresponding path program 1 times [2021-11-22 22:33:34,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:33:34,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101776288] [2021-11-22 22:33:34,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:33:34,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:33:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:33:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-22 22:33:34,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:33:34,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101776288] [2021-11-22 22:33:34,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101776288] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:33:34,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:33:34,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 22:33:34,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684815771] [2021-11-22 22:33:34,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:33:34,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 22:33:34,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:33:34,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 22:33:34,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:33:34,700 INFO L87 Difference]: Start difference. First operand 10795 states and 13064 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:36,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:33:36,240 INFO L93 Difference]: Finished difference Result 26794 states and 32432 transitions. [2021-11-22 22:33:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 22:33:36,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-22 22:33:36,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:33:36,242 INFO L225 Difference]: With dead ends: 26794 [2021-11-22 22:33:36,242 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 22:33:36,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 22:33:36,287 INFO L933 BasicCegarLoop]: 3443 mSDtfsCounter, 5743 mSDsluCounter, 6707 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5743 SdHoareTripleChecker+Valid, 10150 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:33:36,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5743 Valid, 10150 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:33:36,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 22:33:36,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 22:33:36,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:36,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 22:33:36,289 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-11-22 22:33:36,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:33:36,289 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 22:33:36,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:33:36,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 22:33:36,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 22:33:36,295 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2021-11-22 22:33:36,296 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2021-11-22 22:33:36,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2021-11-22 22:33:36,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2021-11-22 22:33:36,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2021-11-22 22:33:36,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2021-11-22 22:33:36,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2021-11-22 22:33:36,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2021-11-22 22:33:36,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2021-11-22 22:33:36,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 22:33:36,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15