./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:28:54,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:28:54,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:28:54,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:28:54,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:28:54,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:28:54,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:28:54,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:28:54,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:28:54,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:28:54,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:28:54,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:28:54,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:28:54,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:28:54,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:28:54,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:28:54,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:28:54,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:28:54,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:28:54,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:28:54,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:28:54,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:28:54,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:28:54,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:28:54,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:28:54,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:28:54,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:28:54,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:28:54,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:28:54,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:28:54,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:28:54,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:28:54,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:28:54,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:28:54,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:28:54,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:28:54,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:28:54,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:28:54,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:28:54,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:28:54,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:28:54,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:28:54,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:28:54,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:28:54,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:28:54,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:28:54,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:28:54,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:28:54,940 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:28:54,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:28:54,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:28:54,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:28:54,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:28:54,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:28:54,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:28:54,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:28:54,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:28:54,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:28:54,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:28:54,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:28:54,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:28:54,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:28:54,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:28:54,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:28:54,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:28:54,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:28:54,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:28:54,944 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:28:54,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:28:54,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:28:54,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:28:54,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2021-11-04 10:28:55,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:28:55,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:28:55,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:28:55,222 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:28:55,223 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:28:55,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-04 10:28:55,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3338b81b/89e55eaa049445f99bdbd5bdf0bea8d5/FLAG7d5aff06b [2021-11-04 10:28:56,052 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:28:56,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-04 10:28:56,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3338b81b/89e55eaa049445f99bdbd5bdf0bea8d5/FLAG7d5aff06b [2021-11-04 10:28:56,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3338b81b/89e55eaa049445f99bdbd5bdf0bea8d5 [2021-11-04 10:28:56,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:28:56,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:28:56,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:28:56,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:28:56,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:28:56,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:28:56" (1/1) ... [2021-11-04 10:28:56,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9d9777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:56, skipping insertion in model container [2021-11-04 10:28:56,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:28:56" (1/1) ... [2021-11-04 10:28:56,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:28:56,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:28:59,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-04 10:28:59,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-04 10:28:59,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-04 10:28:59,085 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-04 10:28:59,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:28:59,160 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:28:59,473 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-04 10:28:59,475 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-04 10:28:59,475 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-04 10:28:59,475 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-04 10:28:59,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:28:59,657 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:28:59,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59 WrapperNode [2021-11-04 10:28:59,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:28:59,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:28:59,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:28:59,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:28:59,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:28:59,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:29:00,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:29:00,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:29:00,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:29:00,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:29:00,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:29:00,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:29:00,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:29:00,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:29:01,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:29:01,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:29:01,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:29:01,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:29:01,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:29:01,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:29:01,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:29:01,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (1/1) ... [2021-11-04 10:29:01,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:29:01,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:29:01,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 10:29:01,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 10:29:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:29:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:29:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:29:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:29:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:29:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:29:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:29:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:29:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:29:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:29:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 10:29:06,200 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 10:29:06,201 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 10:29:06,201 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 10:29:06,201 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 10:29:06,202 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 10:29:06,203 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 10:29:06,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 10:29:06,244 INFO L299 CfgBuilder]: Removed 7996 assume(true) statements. [2021-11-04 10:29:06,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:29:06 BoogieIcfgContainer [2021-11-04 10:29:06,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 10:29:06,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 10:29:06,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 10:29:06,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 10:29:06,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:28:56" (1/3) ... [2021-11-04 10:29:06,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37157e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:29:06, skipping insertion in model container [2021-11-04 10:29:06,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:28:59" (2/3) ... [2021-11-04 10:29:06,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37157e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:29:06, skipping insertion in model container [2021-11-04 10:29:06,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:29:06" (3/3) ... [2021-11-04 10:29:06,260 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-04 10:29:06,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 10:29:06,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2021-11-04 10:29:06,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 10:29:06,340 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 10:29:06,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2021-11-04 10:29:06,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 6306 states, 6253 states have (on average 1.2653126499280345) internal successors, (7912), 6305 states have internal predecessors, (7912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:29:06,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-04 10:29:06,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:29:06,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:29:06,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:29:06,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:29:06,454 INFO L85 PathProgramCache]: Analyzing trace with hash 2134408722, now seen corresponding path program 1 times [2021-11-04 10:29:06,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:29:06,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032731824] [2021-11-04 10:29:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:29:06,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:29:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:29:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:29:07,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:29:07,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032731824] [2021-11-04 10:29:07,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032731824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:29:07,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:29:07,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:29:07,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512707615] [2021-11-04 10:29:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:29:07,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:29:07,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:29:07,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:29:07,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:29:07,081 INFO L87 Difference]: Start difference. First operand has 6306 states, 6253 states have (on average 1.2653126499280345) internal successors, (7912), 6305 states have internal predecessors, (7912), 0 states have call successors, (0), 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 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:29:20,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:29:20,929 INFO L93 Difference]: Finished difference Result 18214 states and 22810 transitions. [2021-11-04 10:29:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:29:20,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-04 10:29:20,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:29:20,993 INFO L225 Difference]: With dead ends: 18214 [2021-11-04 10:29:20,994 INFO L226 Difference]: Without dead ends: 11752 [2021-11-04 10:29:21,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:29:21,016 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 7325 mSDsluCounter, 7502 mSDsCounter, 0 mSdLazyCounter, 15034 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10658.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7325 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 15045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.18ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13255.48ms IncrementalHoareTripleChecker+Time [2021-11-04 10:29:21,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7325 Valid, 304 Invalid, 15045 Unknown, 0 Unchecked, 36.18ms Time], IncrementalHoareTripleChecker [11 Valid, 15034 Invalid, 0 Unknown, 0 Unchecked, 13255.48ms Time] [2021-11-04 10:29:21,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11752 states. [2021-11-04 10:29:21,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11752 to 11472. [2021-11-04 10:29:21,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11472 states, 11419 states have (on average 1.2307557579472808) internal successors, (14054), 11471 states have internal predecessors, (14054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:29:21,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11472 states to 11472 states and 14054 transitions. [2021-11-04 10:29:21,370 INFO L78 Accepts]: Start accepts. Automaton has 11472 states and 14054 transitions. Word has length 49 [2021-11-04 10:29:21,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:29:21,372 INFO L470 AbstractCegarLoop]: Abstraction has 11472 states and 14054 transitions. [2021-11-04 10:29:21,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:29:21,374 INFO L276 IsEmpty]: Start isEmpty. Operand 11472 states and 14054 transitions. [2021-11-04 10:29:21,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-04 10:29:21,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:29:21,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:29:21,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 10:29:21,381 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:29:21,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:29:21,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1502773357, now seen corresponding path program 1 times [2021-11-04 10:29:21,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:29:21,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422780406] [2021-11-04 10:29:21,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:29:21,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:29:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:29:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:29:21,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:29:21,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422780406] [2021-11-04 10:29:21,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422780406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:29:21,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:29:21,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:29:21,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242608245] [2021-11-04 10:29:21,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:29:21,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:29:21,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:29:21,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:29:21,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:29:21,567 INFO L87 Difference]: Start difference. First operand 11472 states and 14054 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 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) [2021-11-04 10:29:34,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:29:34,792 INFO L93 Difference]: Finished difference Result 34002 states and 41723 transitions. [2021-11-04 10:29:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:29:34,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 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 51 [2021-11-04 10:29:34,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:29:34,867 INFO L225 Difference]: With dead ends: 34002 [2021-11-04 10:29:34,868 INFO L226 Difference]: Without dead ends: 22622 [2021-11-04 10:29:34,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:29:34,900 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7226 mSDsluCounter, 7465 mSDsCounter, 0 mSdLazyCounter, 14995 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10325.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7226 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.79ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12646.46ms IncrementalHoareTripleChecker+Time [2021-11-04 10:29:34,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7226 Valid, 0 Invalid, 15001 Unknown, 0 Unchecked, 19.79ms Time], IncrementalHoareTripleChecker [6 Valid, 14995 Invalid, 0 Unknown, 0 Unchecked, 12646.46ms Time] [2021-11-04 10:29:34,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22622 states. [2021-11-04 10:29:35,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22622 to 22588. [2021-11-04 10:29:35,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22588 states, 22535 states have (on average 1.231107166629687) internal successors, (27743), 22587 states have internal predecessors, (27743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:29:35,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22588 states to 22588 states and 27743 transitions. [2021-11-04 10:29:35,539 INFO L78 Accepts]: Start accepts. Automaton has 22588 states and 27743 transitions. Word has length 51 [2021-11-04 10:29:35,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:29:35,539 INFO L470 AbstractCegarLoop]: Abstraction has 22588 states and 27743 transitions. [2021-11-04 10:29:35,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 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) [2021-11-04 10:29:35,541 INFO L276 IsEmpty]: Start isEmpty. Operand 22588 states and 27743 transitions. [2021-11-04 10:29:35,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-04 10:29:35,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:29:35,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:29:35,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 10:29:35,550 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:29:35,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:29:35,551 INFO L85 PathProgramCache]: Analyzing trace with hash -237173952, now seen corresponding path program 1 times [2021-11-04 10:29:35,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:29:35,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944001801] [2021-11-04 10:29:35,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:29:35,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:29:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:29:35,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:29:35,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:29:35,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944001801] [2021-11-04 10:29:35,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944001801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:29:35,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:29:35,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:29:35,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540644531] [2021-11-04 10:29:35,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:29:35,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:29:35,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:29:35,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:29:35,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:29:35,738 INFO L87 Difference]: Start difference. First operand 22588 states and 27743 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:29:48,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:29:48,271 INFO L93 Difference]: Finished difference Result 63944 states and 78446 transitions. [2021-11-04 10:29:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:29:48,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-11-04 10:29:48,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:29:48,384 INFO L225 Difference]: With dead ends: 63944 [2021-11-04 10:29:48,384 INFO L226 Difference]: Without dead ends: 41448 [2021-11-04 10:29:48,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.07ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:29:48,443 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 6294 mSDsluCounter, 7321 mSDsCounter, 0 mSdLazyCounter, 14901 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9455.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6294 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.52ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11656.54ms IncrementalHoareTripleChecker+Time [2021-11-04 10:29:48,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6294 Valid, 0 Invalid, 14910 Unknown, 0 Unchecked, 17.52ms Time], IncrementalHoareTripleChecker [9 Valid, 14901 Invalid, 0 Unknown, 0 Unchecked, 11656.54ms Time] [2021-11-04 10:29:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41448 states. [2021-11-04 10:29:49,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41448 to 40956. [2021-11-04 10:29:49,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40956 states, 40903 states have (on average 1.228247316822727) internal successors, (50239), 40955 states have internal predecessors, (50239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:29:49,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40956 states to 40956 states and 50239 transitions. [2021-11-04 10:29:49,475 INFO L78 Accepts]: Start accepts. Automaton has 40956 states and 50239 transitions. Word has length 55 [2021-11-04 10:29:49,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:29:49,477 INFO L470 AbstractCegarLoop]: Abstraction has 40956 states and 50239 transitions. [2021-11-04 10:29:49,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:29:49,478 INFO L276 IsEmpty]: Start isEmpty. Operand 40956 states and 50239 transitions. [2021-11-04 10:29:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-04 10:29:49,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:29:49,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:29:49,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 10:29:49,480 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:29:49,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:29:49,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1307803746, now seen corresponding path program 1 times [2021-11-04 10:29:49,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:29:49,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014425028] [2021-11-04 10:29:49,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:29:49,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:29:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:29:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:29:49,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:29:49,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014425028] [2021-11-04 10:29:49,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014425028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:29:49,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:29:49,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-04 10:29:49,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572929564] [2021-11-04 10:29:49,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:29:49,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-04 10:29:49,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:29:49,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-04 10:29:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-04 10:29:49,662 INFO L87 Difference]: Start difference. First operand 40956 states and 50239 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:04,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:30:04,887 INFO L93 Difference]: Finished difference Result 76697 states and 94095 transitions. [2021-11-04 10:30:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:30:04,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2021-11-04 10:30:04,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:30:04,984 INFO L225 Difference]: With dead ends: 76697 [2021-11-04 10:30:04,984 INFO L226 Difference]: Without dead ends: 35833 [2021-11-04 10:30:05,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.08ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-04 10:30:05,075 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 26363 mSDsluCounter, 11295 mSDsCounter, 0 mSdLazyCounter, 20335 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11569.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26363 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 20431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.54ms SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 20335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14094.66ms IncrementalHoareTripleChecker+Time [2021-11-04 10:30:05,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26363 Valid, 0 Invalid, 20431 Unknown, 0 Unchecked, 56.54ms Time], IncrementalHoareTripleChecker [96 Valid, 20335 Invalid, 0 Unknown, 0 Unchecked, 14094.66ms Time] [2021-11-04 10:30:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35833 states. [2021-11-04 10:30:06,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35833 to 35617. [2021-11-04 10:30:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35617 states, 35564 states have (on average 1.2284051287819142) internal successors, (43687), 35616 states have internal predecessors, (43687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:06,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35617 states to 35617 states and 43687 transitions. [2021-11-04 10:30:06,271 INFO L78 Accepts]: Start accepts. Automaton has 35617 states and 43687 transitions. Word has length 56 [2021-11-04 10:30:06,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:30:06,271 INFO L470 AbstractCegarLoop]: Abstraction has 35617 states and 43687 transitions. [2021-11-04 10:30:06,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:06,273 INFO L276 IsEmpty]: Start isEmpty. Operand 35617 states and 43687 transitions. [2021-11-04 10:30:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-04 10:30:06,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:30:06,276 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:30:06,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 10:30:06,276 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:30:06,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:30:06,277 INFO L85 PathProgramCache]: Analyzing trace with hash 823876995, now seen corresponding path program 1 times [2021-11-04 10:30:06,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:30:06,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307134845] [2021-11-04 10:30:06,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:30:06,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:30:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:30:06,429 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:30:06,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:30:06,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307134845] [2021-11-04 10:30:06,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307134845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:30:06,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:30:06,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:30:06,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921480385] [2021-11-04 10:30:06,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:30:06,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:30:06,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:30:06,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:30:06,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:30:06,432 INFO L87 Difference]: Start difference. First operand 35617 states and 43687 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:19,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:30:19,968 INFO L93 Difference]: Finished difference Result 103811 states and 127496 transitions. [2021-11-04 10:30:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:30:19,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2021-11-04 10:30:19,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:30:20,128 INFO L225 Difference]: With dead ends: 103811 [2021-11-04 10:30:20,129 INFO L226 Difference]: Without dead ends: 69439 [2021-11-04 10:30:20,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:30:20,207 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7281 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 14938 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9715.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7281 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.09ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11962.11ms IncrementalHoareTripleChecker+Time [2021-11-04 10:30:20,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7281 Valid, 0 Invalid, 14946 Unknown, 0 Unchecked, 18.09ms Time], IncrementalHoareTripleChecker [8 Valid, 14938 Invalid, 0 Unknown, 0 Unchecked, 11962.11ms Time] [2021-11-04 10:30:20,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69439 states. [2021-11-04 10:30:21,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69439 to 69405. [2021-11-04 10:30:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69405 states, 69352 states have (on average 1.2290200715192063) internal successors, (85235), 69404 states have internal predecessors, (85235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:21,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69405 states to 69405 states and 85235 transitions. [2021-11-04 10:30:21,990 INFO L78 Accepts]: Start accepts. Automaton has 69405 states and 85235 transitions. Word has length 80 [2021-11-04 10:30:21,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:30:21,990 INFO L470 AbstractCegarLoop]: Abstraction has 69405 states and 85235 transitions. [2021-11-04 10:30:21,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 69405 states and 85235 transitions. [2021-11-04 10:30:21,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-04 10:30:21,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:30:21,992 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:30:21,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 10:30:21,993 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:30:21,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:30:21,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1472158610, now seen corresponding path program 1 times [2021-11-04 10:30:21,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:30:21,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213718055] [2021-11-04 10:30:21,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:30:21,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:30:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:30:22,274 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:30:22,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:30:22,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213718055] [2021-11-04 10:30:22,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213718055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:30:22,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:30:22,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:30:22,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891341966] [2021-11-04 10:30:22,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:30:22,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:30:22,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:30:22,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:30:22,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:30:22,275 INFO L87 Difference]: Start difference. First operand 69405 states and 85235 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:36,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:30:36,653 INFO L93 Difference]: Finished difference Result 171363 states and 210496 transitions. [2021-11-04 10:30:36,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:30:36,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-04 10:30:36,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:30:37,039 INFO L225 Difference]: With dead ends: 171363 [2021-11-04 10:30:37,040 INFO L226 Difference]: Without dead ends: 103203 [2021-11-04 10:30:37,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:30:37,141 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7200 mSDsluCounter, 7484 mSDsCounter, 0 mSdLazyCounter, 16398 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9902.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7200 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.67ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12198.93ms IncrementalHoareTripleChecker+Time [2021-11-04 10:30:37,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7200 Valid, 0 Invalid, 16399 Unknown, 0 Unchecked, 18.67ms Time], IncrementalHoareTripleChecker [1 Valid, 16398 Invalid, 0 Unknown, 0 Unchecked, 12198.93ms Time] [2021-11-04 10:30:37,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103203 states. [2021-11-04 10:30:39,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103203 to 103169. [2021-11-04 10:30:39,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103169 states, 103116 states have (on average 1.228936343535436) internal successors, (126723), 103168 states have internal predecessors, (126723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:39,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103169 states to 103169 states and 126723 transitions. [2021-11-04 10:30:39,927 INFO L78 Accepts]: Start accepts. Automaton has 103169 states and 126723 transitions. Word has length 81 [2021-11-04 10:30:39,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:30:39,928 INFO L470 AbstractCegarLoop]: Abstraction has 103169 states and 126723 transitions. [2021-11-04 10:30:39,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:39,928 INFO L276 IsEmpty]: Start isEmpty. Operand 103169 states and 126723 transitions. [2021-11-04 10:30:39,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-04 10:30:39,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:30:39,930 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:30:39,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 10:30:39,931 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:30:39,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:30:39,931 INFO L85 PathProgramCache]: Analyzing trace with hash 451090256, now seen corresponding path program 1 times [2021-11-04 10:30:39,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:30:39,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004190243] [2021-11-04 10:30:39,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:30:39,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:30:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:30:40,149 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:30:40,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:30:40,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004190243] [2021-11-04 10:30:40,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004190243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:30:40,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:30:40,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:30:40,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865562428] [2021-11-04 10:30:40,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:30:40,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:30:40,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:30:40,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:30:40,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:30:40,153 INFO L87 Difference]: Start difference. First operand 103169 states and 126723 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:52,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:30:52,482 INFO L93 Difference]: Finished difference Result 103169 states and 126723 transitions. [2021-11-04 10:30:52,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:30:52,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-04 10:30:52,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:30:52,673 INFO L225 Difference]: With dead ends: 103169 [2021-11-04 10:30:52,673 INFO L226 Difference]: Without dead ends: 103163 [2021-11-04 10:30:52,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.39ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:30:52,707 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7438 mSDsluCounter, 7402 mSDsCounter, 0 mSdLazyCounter, 14972 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8842.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7438 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.15ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 14972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10515.44ms IncrementalHoareTripleChecker+Time [2021-11-04 10:30:52,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7438 Valid, 0 Invalid, 15006 Unknown, 0 Unchecked, 24.15ms Time], IncrementalHoareTripleChecker [34 Valid, 14972 Invalid, 0 Unknown, 0 Unchecked, 10515.44ms Time] [2021-11-04 10:30:52,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103163 states. [2021-11-04 10:30:55,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103163 to 103163. [2021-11-04 10:30:55,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103163 states, 103113 states have (on average 1.2289139099822526) internal successors, (126717), 103162 states have internal predecessors, (126717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103163 states to 103163 states and 126717 transitions. [2021-11-04 10:30:55,449 INFO L78 Accepts]: Start accepts. Automaton has 103163 states and 126717 transitions. Word has length 81 [2021-11-04 10:30:55,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:30:55,449 INFO L470 AbstractCegarLoop]: Abstraction has 103163 states and 126717 transitions. [2021-11-04 10:30:55,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:55,449 INFO L276 IsEmpty]: Start isEmpty. Operand 103163 states and 126717 transitions. [2021-11-04 10:30:55,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-04 10:30:55,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:30:55,451 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:30:55,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 10:30:55,452 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:30:55,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:30:55,452 INFO L85 PathProgramCache]: Analyzing trace with hash -293812333, now seen corresponding path program 1 times [2021-11-04 10:30:55,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:30:55,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313402344] [2021-11-04 10:30:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:30:55,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:30:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:30:55,869 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:30:55,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:30:55,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313402344] [2021-11-04 10:30:55,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313402344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:30:55,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:30:55,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:30:55,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121766008] [2021-11-04 10:30:55,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:30:55,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:30:55,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:30:55,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:30:55,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:30:55,873 INFO L87 Difference]: Start difference. First operand 103163 states and 126717 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:30:57,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:08,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:31:08,660 INFO L93 Difference]: Finished difference Result 103163 states and 126717 transitions. [2021-11-04 10:31:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:31:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 83 [2021-11-04 10:31:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:31:08,846 INFO L225 Difference]: With dead ends: 103163 [2021-11-04 10:31:08,846 INFO L226 Difference]: Without dead ends: 103157 [2021-11-04 10:31:08,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:31:08,883 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7427 mSDsluCounter, 7399 mSDsCounter, 0 mSdLazyCounter, 14960 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9043.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7427 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.77ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 14960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10675.55ms IncrementalHoareTripleChecker+Time [2021-11-04 10:31:08,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7427 Valid, 0 Invalid, 14997 Unknown, 0 Unchecked, 22.77ms Time], IncrementalHoareTripleChecker [37 Valid, 14960 Invalid, 0 Unknown, 0 Unchecked, 10675.55ms Time] [2021-11-04 10:31:08,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103157 states. [2021-11-04 10:31:11,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103157 to 103157. [2021-11-04 10:31:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103157 states, 103110 states have (on average 1.2288914751236544) internal successors, (126711), 103156 states have internal predecessors, (126711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:31:11,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103157 states to 103157 states and 126711 transitions. [2021-11-04 10:31:11,831 INFO L78 Accepts]: Start accepts. Automaton has 103157 states and 126711 transitions. Word has length 83 [2021-11-04 10:31:11,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:31:11,831 INFO L470 AbstractCegarLoop]: Abstraction has 103157 states and 126711 transitions. [2021-11-04 10:31:11,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:31:11,832 INFO L276 IsEmpty]: Start isEmpty. Operand 103157 states and 126711 transitions. [2021-11-04 10:31:11,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-04 10:31:11,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:31:11,833 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:31:11,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 10:31:11,834 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:31:11,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:31:11,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1114338390, now seen corresponding path program 1 times [2021-11-04 10:31:11,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:31:11,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169588773] [2021-11-04 10:31:11,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:31:11,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:31:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:31:11,995 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:31:11,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:31:11,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169588773] [2021-11-04 10:31:11,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169588773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:31:11,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:31:11,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:31:11,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963455963] [2021-11-04 10:31:11,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:31:11,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:31:11,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:31:11,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:31:11,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:31:11,998 INFO L87 Difference]: Start difference. First operand 103157 states and 126711 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:31:14,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:25,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:31:25,476 INFO L93 Difference]: Finished difference Result 103157 states and 126711 transitions. [2021-11-04 10:31:25,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:31:25,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 85 [2021-11-04 10:31:25,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:31:25,662 INFO L225 Difference]: With dead ends: 103157 [2021-11-04 10:31:25,662 INFO L226 Difference]: Without dead ends: 103151 [2021-11-04 10:31:25,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:31:25,696 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7419 mSDsluCounter, 7396 mSDsCounter, 0 mSdLazyCounter, 14947 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9370.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7419 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.33ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 14947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11308.07ms IncrementalHoareTripleChecker+Time [2021-11-04 10:31:25,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7419 Valid, 0 Invalid, 14985 Unknown, 0 Unchecked, 19.33ms Time], IncrementalHoareTripleChecker [37 Valid, 14947 Invalid, 1 Unknown, 0 Unchecked, 11308.07ms Time] [2021-11-04 10:31:25,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103151 states. [2021-11-04 10:31:28,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103151 to 103151. [2021-11-04 10:31:28,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103151 states, 103107 states have (on average 1.2288690389595274) internal successors, (126705), 103150 states have internal predecessors, (126705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:31:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103151 states to 103151 states and 126705 transitions. [2021-11-04 10:31:28,891 INFO L78 Accepts]: Start accepts. Automaton has 103151 states and 126705 transitions. Word has length 85 [2021-11-04 10:31:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:31:28,892 INFO L470 AbstractCegarLoop]: Abstraction has 103151 states and 126705 transitions. [2021-11-04 10:31:28,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:31:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 103151 states and 126705 transitions. [2021-11-04 10:31:28,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-04 10:31:28,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:31:28,894 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:31:28,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 10:31:28,894 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-04 10:31:28,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:31:28,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1432485273, now seen corresponding path program 1 times [2021-11-04 10:31:28,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:31:28,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994497034] [2021-11-04 10:31:28,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:31:28,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:31:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:31:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:31:29,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:31:29,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994497034] [2021-11-04 10:31:29,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994497034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:31:29,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:31:29,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:31:29,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777475067] [2021-11-04 10:31:29,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:31:29,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:31:29,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:31:29,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:31:29,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:31:29,286 INFO L87 Difference]: Start difference. First operand 103151 states and 126705 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)