./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-smsc-epic100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-smsc-epic100.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 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 17:31:51,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:31:51,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:31:51,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:31:51,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:31:51,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:31:51,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:31:51,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:31:51,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:31:51,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:31:51,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:31:51,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:31:51,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:31:51,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:31:51,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:31:51,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:31:51,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:31:51,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:31:51,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:31:51,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:31:51,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:31:51,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:31:51,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:31:51,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:31:51,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:31:51,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:31:51,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:31:51,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:31:51,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:31:51,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:31:51,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:31:51,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:31:51,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:31:51,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:31:51,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:31:51,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:31:51,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:31:51,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:31:51,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:31:51,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:31:51,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:31:51,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:31:51,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:31:51,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:31:51,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:31:51,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:31:51,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:31:51,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:31:51,871 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:31:51,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:31:51,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:31:51,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:31:51,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:31:51,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:31:51,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:31:51,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:31:51,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:31:51,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:31:51,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:31:51,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:31:51,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:31:51,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:31:51,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:31:51,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:31:51,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:31:51,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:31:51,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:31:51,875 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:31:51,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:31:51,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:31:51,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:31:51,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2021-11-07 17:31:52,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:31:52,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:31:52,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:31:52,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:31:52,113 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:31:52,114 INFO L432 ainManager$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-smsc-epic100.cil.i [2021-11-07 17:31:52,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1637300e2/1ec680968aca4466b8ae03f4e949e16d/FLAG915bc94cc [2021-11-07 17:31:52,899 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:31:52,900 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-smsc-epic100.cil.i [2021-11-07 17:31:52,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1637300e2/1ec680968aca4466b8ae03f4e949e16d/FLAG915bc94cc [2021-11-07 17:31:53,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1637300e2/1ec680968aca4466b8ae03f4e949e16d [2021-11-07 17:31:53,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:31:53,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:31:53,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:31:53,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:31:53,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:31:53,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:31:53" (1/1) ... [2021-11-07 17:31:53,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e972fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:53, skipping insertion in model container [2021-11-07 17:31:53,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:31:53" (1/1) ... [2021-11-07 17:31:53,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:31:53,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:31:55,283 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-smsc-epic100.cil.i[331922,331935] [2021-11-07 17:31:55,286 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-smsc-epic100.cil.i[332091,332104] [2021-11-07 17:31:55,286 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-smsc-epic100.cil.i[332258,332271] [2021-11-07 17:31:55,287 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-smsc-epic100.cil.i[332426,332439] [2021-11-07 17:31:55,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:31:55,396 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:31:55,684 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-smsc-epic100.cil.i[331922,331935] [2021-11-07 17:31:55,685 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-smsc-epic100.cil.i[332091,332104] [2021-11-07 17:31:55,685 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-smsc-epic100.cil.i[332258,332271] [2021-11-07 17:31:55,685 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-smsc-epic100.cil.i[332426,332439] [2021-11-07 17:31:55,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:31:55,909 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:31:55,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55 WrapperNode [2021-11-07 17:31:55,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:31:55,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:31:55,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:31:55,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:31:55,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:56,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:56,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:31:56,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:31:56,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:31:56,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:31:56,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:56,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:56,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:56,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:56,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:56,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:57,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:57,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:31:57,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:31:57,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:31:57,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:31:57,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (1/1) ... [2021-11-07 17:31:57,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:31:57,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:31:57,209 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) [2021-11-07 17:31:57,265 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 [2021-11-07 17:31:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 17:31:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:31:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:31:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:31:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:31:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:31:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:31:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:31:57,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:31:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:31:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:31:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:31:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:31:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:31:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:31:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:32:09,599 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:32:09,600 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 17:32:09,600 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:32:09,600 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:32:09,600 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:32:09,600 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:32:09,624 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:32:09,625 INFO L299 CfgBuilder]: Removed 3504 assume(true) statements. [2021-11-07 17:32:09,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:32:09 BoogieIcfgContainer [2021-11-07 17:32:09,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:32:09,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:32:09,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:32:09,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:32:09,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:31:53" (1/3) ... [2021-11-07 17:32:09,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187d7748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:32:09, skipping insertion in model container [2021-11-07 17:32:09,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:55" (2/3) ... [2021-11-07 17:32:09,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187d7748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:32:09, skipping insertion in model container [2021-11-07 17:32:09,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:32:09" (3/3) ... [2021-11-07 17:32:09,665 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2021-11-07 17:32:09,674 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:32:09,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2021-11-07 17:32:09,731 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:32:09,736 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 [2021-11-07 17:32:09,736 INFO L340 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2021-11-07 17:32:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 3325 states, 3276 states have (on average 1.3427960927960927) internal successors, (4399), 3324 states have internal predecessors, (4399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 17:32:09,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:09,807 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] [2021-11-07 17:32:09,807 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:09,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:09,812 INFO L85 PathProgramCache]: Analyzing trace with hash -113139560, now seen corresponding path program 1 times [2021-11-07 17:32:09,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:09,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344756356] [2021-11-07 17:32:09,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:09,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:10,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:10,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344756356] [2021-11-07 17:32:10,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344756356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:10,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:10,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:10,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339226942] [2021-11-07 17:32:10,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:10,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:10,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:10,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:10,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:10,566 INFO L87 Difference]: Start difference. First operand has 3325 states, 3276 states have (on average 1.3427960927960927) internal successors, (4399), 3324 states have internal predecessors, (4399), 0 states have call successors, (0), 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 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:12,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:13,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:13,151 INFO L93 Difference]: Finished difference Result 9565 states and 12678 transitions. [2021-11-07 17:32:13,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:13,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-11-07 17:32:13,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:13,200 INFO L225 Difference]: With dead ends: 9565 [2021-11-07 17:32:13,201 INFO L226 Difference]: Without dead ends: 6084 [2021-11-07 17:32:13,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:13,220 INFO L933 BasicCegarLoop]: 4301 mSDtfsCounter, 3971 mSDsluCounter, 4253 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2097.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3971 SdHoareTripleChecker+Valid, 8554 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.37ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2265.65ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:13,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3971 Valid, 8554 Invalid, 34 Unknown, 0 Unchecked, 29.37ms Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2265.65ms Time] [2021-11-07 17:32:13,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2021-11-07 17:32:13,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 6064. [2021-11-07 17:32:13,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6064 states, 6015 states have (on average 1.286783042394015) internal successors, (7740), 6063 states have internal predecessors, (7740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:13,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6064 states to 6064 states and 7740 transitions. [2021-11-07 17:32:13,519 INFO L78 Accepts]: Start accepts. Automaton has 6064 states and 7740 transitions. Word has length 45 [2021-11-07 17:32:13,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:13,521 INFO L470 AbstractCegarLoop]: Abstraction has 6064 states and 7740 transitions. [2021-11-07 17:32:13,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand 6064 states and 7740 transitions. [2021-11-07 17:32:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 17:32:13,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:13,531 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] [2021-11-07 17:32:13,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:32:13,532 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:13,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:13,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1051115891, now seen corresponding path program 1 times [2021-11-07 17:32:13,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:13,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294293549] [2021-11-07 17:32:13,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:13,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:13,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:13,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294293549] [2021-11-07 17:32:13,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294293549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:13,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:13,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:13,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010105267] [2021-11-07 17:32:13,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:13,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:13,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:13,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:13,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:13,776 INFO L87 Difference]: Start difference. First operand 6064 states and 7740 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:15,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:16,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:16,274 INFO L93 Difference]: Finished difference Result 16094 states and 20572 transitions. [2021-11-07 17:32:16,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:16,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2021-11-07 17:32:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:16,314 INFO L225 Difference]: With dead ends: 16094 [2021-11-07 17:32:16,314 INFO L226 Difference]: Without dead ends: 10106 [2021-11-07 17:32:16,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:16,330 INFO L933 BasicCegarLoop]: 4012 mSDtfsCounter, 3534 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2115.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3534 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.71ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2249.63ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:16,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3534 Valid, 7158 Invalid, 44 Unknown, 0 Unchecked, 13.71ms Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2249.63ms Time] [2021-11-07 17:32:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10106 states. [2021-11-07 17:32:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10106 to 9534. [2021-11-07 17:32:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9534 states, 9485 states have (on average 1.293621507643648) internal successors, (12270), 9533 states have internal predecessors, (12270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:16,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9534 states to 9534 states and 12270 transitions. [2021-11-07 17:32:16,820 INFO L78 Accepts]: Start accepts. Automaton has 9534 states and 12270 transitions. Word has length 48 [2021-11-07 17:32:16,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:16,821 INFO L470 AbstractCegarLoop]: Abstraction has 9534 states and 12270 transitions. [2021-11-07 17:32:16,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 9534 states and 12270 transitions. [2021-11-07 17:32:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 17:32:16,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:16,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:16,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:32:16,824 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:16,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:16,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1663310419, now seen corresponding path program 1 times [2021-11-07 17:32:16,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:16,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960827141] [2021-11-07 17:32:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:16,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:17,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:17,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:17,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960827141] [2021-11-07 17:32:17,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960827141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:17,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:17,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:17,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997750491] [2021-11-07 17:32:17,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:17,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:17,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:17,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:17,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:17,042 INFO L87 Difference]: Start difference. First operand 9534 states and 12270 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) [2021-11-07 17:32:19,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:19,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:19,632 INFO L93 Difference]: Finished difference Result 26848 states and 34562 transitions. [2021-11-07 17:32:19,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:19,632 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 [2021-11-07 17:32:19,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:19,707 INFO L225 Difference]: With dead ends: 26848 [2021-11-07 17:32:19,708 INFO L226 Difference]: Without dead ends: 17390 [2021-11-07 17:32:19,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:19,737 INFO L933 BasicCegarLoop]: 4014 mSDtfsCounter, 3401 mSDsluCounter, 3942 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2152.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3401 SdHoareTripleChecker+Valid, 7956 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.38ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2291.26ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:19,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3401 Valid, 7956 Invalid, 86 Unknown, 0 Unchecked, 12.38ms Time], IncrementalHoareTripleChecker [9 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 2291.26ms Time] [2021-11-07 17:32:19,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17390 states. [2021-11-07 17:32:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17390 to 16002. [2021-11-07 17:32:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16002 states, 15953 states have (on average 1.2954303265843414) internal successors, (20666), 16001 states have internal predecessors, (20666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16002 states to 16002 states and 20666 transitions. [2021-11-07 17:32:20,399 INFO L78 Accepts]: Start accepts. Automaton has 16002 states and 20666 transitions. Word has length 51 [2021-11-07 17:32:20,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:20,401 INFO L470 AbstractCegarLoop]: Abstraction has 16002 states and 20666 transitions. [2021-11-07 17:32:20,401 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) [2021-11-07 17:32:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand 16002 states and 20666 transitions. [2021-11-07 17:32:20,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 17:32:20,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:20,405 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] [2021-11-07 17:32:20,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:32:20,405 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:20,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:20,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1943570088, now seen corresponding path program 1 times [2021-11-07 17:32:20,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:20,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448498311] [2021-11-07 17:32:20,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:20,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:20,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:20,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448498311] [2021-11-07 17:32:20,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448498311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:20,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:20,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:20,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756934427] [2021-11-07 17:32:20,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:20,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:20,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:20,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:20,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:20,584 INFO L87 Difference]: Start difference. First operand 16002 states and 20666 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) 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) [2021-11-07 17:32:22,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:23,077 INFO L93 Difference]: Finished difference Result 31940 states and 41269 transitions. [2021-11-07 17:32:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) 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 74 [2021-11-07 17:32:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:23,135 INFO L225 Difference]: With dead ends: 31940 [2021-11-07 17:32:23,136 INFO L226 Difference]: Without dead ends: 23810 [2021-11-07 17:32:23,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:23,161 INFO L933 BasicCegarLoop]: 7742 mSDtfsCounter, 3724 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2069.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3724 SdHoareTripleChecker+Valid, 11740 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.28ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2239.73ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:23,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3724 Valid, 11740 Invalid, 30 Unknown, 0 Unchecked, 9.28ms Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2239.73ms Time] [2021-11-07 17:32:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23810 states. [2021-11-07 17:32:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23810 to 23790. [2021-11-07 17:32:23,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23790 states, 23741 states have (on average 1.2959858472684385) internal successors, (30768), 23789 states have internal predecessors, (30768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23790 states to 23790 states and 30768 transitions. [2021-11-07 17:32:23,822 INFO L78 Accepts]: Start accepts. Automaton has 23790 states and 30768 transitions. Word has length 74 [2021-11-07 17:32:23,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:23,823 INFO L470 AbstractCegarLoop]: Abstraction has 23790 states and 30768 transitions. [2021-11-07 17:32:23,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) 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) [2021-11-07 17:32:23,824 INFO L276 IsEmpty]: Start isEmpty. Operand 23790 states and 30768 transitions. [2021-11-07 17:32:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 17:32:23,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:23,827 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] [2021-11-07 17:32:23,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:32:23,827 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:23,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:23,828 INFO L85 PathProgramCache]: Analyzing trace with hash 663706410, now seen corresponding path program 1 times [2021-11-07 17:32:23,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:23,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984302676] [2021-11-07 17:32:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:23,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:24,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:24,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984302676] [2021-11-07 17:32:24,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984302676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:24,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:24,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:24,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479221471] [2021-11-07 17:32:24,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:24,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:24,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:24,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:24,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:24,060 INFO L87 Difference]: Start difference. First operand 23790 states and 30768 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) 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) [2021-11-07 17:32:26,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:26,847 INFO L93 Difference]: Finished difference Result 47520 states and 61481 transitions. [2021-11-07 17:32:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:26,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) 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 74 [2021-11-07 17:32:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:26,923 INFO L225 Difference]: With dead ends: 47520 [2021-11-07 17:32:26,924 INFO L226 Difference]: Without dead ends: 31602 [2021-11-07 17:32:26,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:26,968 INFO L933 BasicCegarLoop]: 7742 mSDtfsCounter, 3774 mSDsluCounter, 3949 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2089.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3774 SdHoareTripleChecker+Valid, 11691 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.34ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2218.06ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:26,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3774 Valid, 11691 Invalid, 32 Unknown, 0 Unchecked, 9.34ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2218.06ms Time] [2021-11-07 17:32:26,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31602 states. [2021-11-07 17:32:27,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31602 to 31561. [2021-11-07 17:32:27,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31561 states, 31512 states have (on average 1.2964267580604214) internal successors, (40853), 31560 states have internal predecessors, (40853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:27,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31561 states to 31561 states and 40853 transitions. [2021-11-07 17:32:27,851 INFO L78 Accepts]: Start accepts. Automaton has 31561 states and 40853 transitions. Word has length 74 [2021-11-07 17:32:27,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:27,851 INFO L470 AbstractCegarLoop]: Abstraction has 31561 states and 40853 transitions. [2021-11-07 17:32:27,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) 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) [2021-11-07 17:32:27,852 INFO L276 IsEmpty]: Start isEmpty. Operand 31561 states and 40853 transitions. [2021-11-07 17:32:27,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 17:32:27,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:27,854 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] [2021-11-07 17:32:27,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:32:27,855 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:27,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:27,856 INFO L85 PathProgramCache]: Analyzing trace with hash 820923817, now seen corresponding path program 1 times [2021-11-07 17:32:27,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:27,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025478492] [2021-11-07 17:32:27,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:27,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:28,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:28,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025478492] [2021-11-07 17:32:28,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025478492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:28,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:28,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:28,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255356947] [2021-11-07 17:32:28,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:28,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:28,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:28,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:28,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:28,119 INFO L87 Difference]: Start difference. First operand 31561 states and 40853 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:28,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:28,858 INFO L93 Difference]: Finished difference Result 31561 states and 40853 transitions. [2021-11-07 17:32:28,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:28,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 75 [2021-11-07 17:32:28,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:28,922 INFO L225 Difference]: With dead ends: 31561 [2021-11-07 17:32:28,922 INFO L226 Difference]: Without dead ends: 31555 [2021-11-07 17:32:28,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.71ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:28,939 INFO L933 BasicCegarLoop]: 4012 mSDtfsCounter, 3958 mSDsluCounter, 3907 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3958 SdHoareTripleChecker+Valid, 7919 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.52ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.12ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:28,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3958 Valid, 7919 Invalid, 115 Unknown, 0 Unchecked, 12.52ms Time], IncrementalHoareTripleChecker [37 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 145.12ms Time] [2021-11-07 17:32:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31555 states. [2021-11-07 17:32:29,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31555 to 31555. [2021-11-07 17:32:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31555 states, 31509 states have (on average 1.2963597702243803) internal successors, (40847), 31554 states have internal predecessors, (40847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:29,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31555 states to 31555 states and 40847 transitions. [2021-11-07 17:32:29,611 INFO L78 Accepts]: Start accepts. Automaton has 31555 states and 40847 transitions. Word has length 75 [2021-11-07 17:32:29,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:29,611 INFO L470 AbstractCegarLoop]: Abstraction has 31555 states and 40847 transitions. [2021-11-07 17:32:29,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:29,612 INFO L276 IsEmpty]: Start isEmpty. Operand 31555 states and 40847 transitions. [2021-11-07 17:32:29,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 17:32:29,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:29,614 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] [2021-11-07 17:32:29,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:32:29,615 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:29,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:29,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1366046868, now seen corresponding path program 1 times [2021-11-07 17:32:29,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:29,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976958566] [2021-11-07 17:32:29,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:29,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:29,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:29,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976958566] [2021-11-07 17:32:29,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976958566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:29,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:29,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:29,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818943949] [2021-11-07 17:32:29,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:29,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:29,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:29,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:29,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:29,857 INFO L87 Difference]: Start difference. First operand 31555 states and 40847 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:30,742 INFO L93 Difference]: Finished difference Result 31555 states and 40847 transitions. [2021-11-07 17:32:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:30,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 77 [2021-11-07 17:32:30,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:30,839 INFO L225 Difference]: With dead ends: 31555 [2021-11-07 17:32:30,840 INFO L226 Difference]: Without dead ends: 31549 [2021-11-07 17:32:30,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.67ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:30,861 INFO L933 BasicCegarLoop]: 4006 mSDtfsCounter, 3947 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 7910 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.63ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 170.16ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:30,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3947 Valid, 7910 Invalid, 115 Unknown, 0 Unchecked, 13.63ms Time], IncrementalHoareTripleChecker [40 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 170.16ms Time] [2021-11-07 17:32:30,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31549 states. [2021-11-07 17:32:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31549 to 31549. [2021-11-07 17:32:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31549 states, 31506 states have (on average 1.2962927696311815) internal successors, (40841), 31548 states have internal predecessors, (40841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:31,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31549 states to 31549 states and 40841 transitions. [2021-11-07 17:32:31,687 INFO L78 Accepts]: Start accepts. Automaton has 31549 states and 40841 transitions. Word has length 77 [2021-11-07 17:32:31,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:31,688 INFO L470 AbstractCegarLoop]: Abstraction has 31549 states and 40841 transitions. [2021-11-07 17:32:31,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:31,688 INFO L276 IsEmpty]: Start isEmpty. Operand 31549 states and 40841 transitions. [2021-11-07 17:32:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 17:32:31,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:31,691 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] [2021-11-07 17:32:31,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:32:31,691 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:31,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:31,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1489100207, now seen corresponding path program 1 times [2021-11-07 17:32:31,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:31,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628120025] [2021-11-07 17:32:31,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:31,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:31,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:31,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628120025] [2021-11-07 17:32:31,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628120025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:31,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:31,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:31,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911725472] [2021-11-07 17:32:31,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:31,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:31,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:31,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:31,919 INFO L87 Difference]: Start difference. First operand 31549 states and 40841 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:32,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:32,738 INFO L93 Difference]: Finished difference Result 31549 states and 40841 transitions. [2021-11-07 17:32:32,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:32,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 79 [2021-11-07 17:32:32,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:32,780 INFO L225 Difference]: With dead ends: 31549 [2021-11-07 17:32:32,781 INFO L226 Difference]: Without dead ends: 31543 [2021-11-07 17:32:32,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.92ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:32,793 INFO L933 BasicCegarLoop]: 4000 mSDtfsCounter, 3939 mSDsluCounter, 3901 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3939 SdHoareTripleChecker+Valid, 7901 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.93ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 138.31ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:32,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3939 Valid, 7901 Invalid, 112 Unknown, 0 Unchecked, 15.93ms Time], IncrementalHoareTripleChecker [40 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 138.31ms Time] [2021-11-07 17:32:32,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31543 states. [2021-11-07 17:32:33,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31543 to 31543. [2021-11-07 17:32:33,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31543 states, 31503 states have (on average 1.29622575627718) internal successors, (40835), 31542 states have internal predecessors, (40835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31543 states to 31543 states and 40835 transitions. [2021-11-07 17:32:33,431 INFO L78 Accepts]: Start accepts. Automaton has 31543 states and 40835 transitions. Word has length 79 [2021-11-07 17:32:33,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:33,431 INFO L470 AbstractCegarLoop]: Abstraction has 31543 states and 40835 transitions. [2021-11-07 17:32:33,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 31543 states and 40835 transitions. [2021-11-07 17:32:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 17:32:33,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:33,434 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] [2021-11-07 17:32:33,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 17:32:33,434 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:33,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:33,435 INFO L85 PathProgramCache]: Analyzing trace with hash 801337458, now seen corresponding path program 1 times [2021-11-07 17:32:33,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:33,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788933609] [2021-11-07 17:32:33,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:33,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:33,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:33,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788933609] [2021-11-07 17:32:33,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788933609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:33,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:33,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:33,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517459330] [2021-11-07 17:32:33,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:33,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:33,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:33,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:33,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:33,744 INFO L87 Difference]: Start difference. First operand 31543 states and 40835 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) [2021-11-07 17:32:34,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:34,664 INFO L93 Difference]: Finished difference Result 31543 states and 40835 transitions. [2021-11-07 17:32:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:34,665 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 [2021-11-07 17:32:34,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:34,706 INFO L225 Difference]: With dead ends: 31543 [2021-11-07 17:32:34,706 INFO L226 Difference]: Without dead ends: 31537 [2021-11-07 17:32:34,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.16ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:34,715 INFO L933 BasicCegarLoop]: 3994 mSDtfsCounter, 3931 mSDsluCounter, 3898 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3931 SdHoareTripleChecker+Valid, 7892 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.53ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 161.81ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:34,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3931 Valid, 7892 Invalid, 109 Unknown, 0 Unchecked, 12.53ms Time], IncrementalHoareTripleChecker [40 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 161.81ms Time] [2021-11-07 17:32:34,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31537 states. [2021-11-07 17:32:35,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31537 to 31537. [2021-11-07 17:32:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31537 states, 31500 states have (on average 1.29615873015873) internal successors, (40829), 31536 states have internal predecessors, (40829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:35,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31537 states to 31537 states and 40829 transitions. [2021-11-07 17:32:35,433 INFO L78 Accepts]: Start accepts. Automaton has 31537 states and 40829 transitions. Word has length 81 [2021-11-07 17:32:35,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:35,433 INFO L470 AbstractCegarLoop]: Abstraction has 31537 states and 40829 transitions. [2021-11-07 17:32:35,433 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) [2021-11-07 17:32:35,433 INFO L276 IsEmpty]: Start isEmpty. Operand 31537 states and 40829 transitions. [2021-11-07 17:32:35,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 17:32:35,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:35,437 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] [2021-11-07 17:32:35,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 17:32:35,437 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:35,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:35,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1286299573, now seen corresponding path program 1 times [2021-11-07 17:32:35,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:35,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492396286] [2021-11-07 17:32:35,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:35,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:35,623 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:35,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:35,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492396286] [2021-11-07 17:32:35,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492396286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:35,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:35,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:35,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135609736] [2021-11-07 17:32:35,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:35,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:35,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:35,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:35,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:35,626 INFO L87 Difference]: Start difference. First operand 31537 states and 40829 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) [2021-11-07 17:32:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:36,499 INFO L93 Difference]: Finished difference Result 31537 states and 40829 transitions. [2021-11-07 17:32:36,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:36,500 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 [2021-11-07 17:32:36,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:36,544 INFO L225 Difference]: With dead ends: 31537 [2021-11-07 17:32:36,545 INFO L226 Difference]: Without dead ends: 31531 [2021-11-07 17:32:36,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.60ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:36,557 INFO L933 BasicCegarLoop]: 3988 mSDtfsCounter, 3923 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3923 SdHoareTripleChecker+Valid, 7883 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.93ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.90ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:36,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3923 Valid, 7883 Invalid, 106 Unknown, 0 Unchecked, 11.93ms Time], IncrementalHoareTripleChecker [40 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 141.90ms Time] [2021-11-07 17:32:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31531 states. [2021-11-07 17:32:37,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31531 to 31531. [2021-11-07 17:32:37,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31531 states, 31497 states have (on average 1.2960916912721847) internal successors, (40823), 31530 states have internal predecessors, (40823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:37,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31531 states to 31531 states and 40823 transitions. [2021-11-07 17:32:37,525 INFO L78 Accepts]: Start accepts. Automaton has 31531 states and 40823 transitions. Word has length 83 [2021-11-07 17:32:37,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:37,525 INFO L470 AbstractCegarLoop]: Abstraction has 31531 states and 40823 transitions. [2021-11-07 17:32:37,525 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) [2021-11-07 17:32:37,525 INFO L276 IsEmpty]: Start isEmpty. Operand 31531 states and 40823 transitions. [2021-11-07 17:32:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 17:32:37,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:37,530 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] [2021-11-07 17:32:37,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 17:32:37,531 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:37,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:37,531 INFO L85 PathProgramCache]: Analyzing trace with hash -816542856, now seen corresponding path program 1 times [2021-11-07 17:32:37,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:37,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776341973] [2021-11-07 17:32:37,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:37,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:37,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:37,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776341973] [2021-11-07 17:32:37,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776341973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:37,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:37,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:37,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983841504] [2021-11-07 17:32:37,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:37,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:37,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:37,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:37,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:37,734 INFO L87 Difference]: Start difference. First operand 31531 states and 40823 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) [2021-11-07 17:32:38,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:38,748 INFO L93 Difference]: Finished difference Result 31531 states and 40823 transitions. [2021-11-07 17:32:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:38,749 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 [2021-11-07 17:32:38,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:38,992 INFO L225 Difference]: With dead ends: 31531 [2021-11-07 17:32:38,992 INFO L226 Difference]: Without dead ends: 31525 [2021-11-07 17:32:39,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.61ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:39,006 INFO L933 BasicCegarLoop]: 3982 mSDtfsCounter, 3915 mSDsluCounter, 3892 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 136.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 7874 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.49ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 155.39ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:39,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3915 Valid, 7874 Invalid, 103 Unknown, 0 Unchecked, 11.49ms Time], IncrementalHoareTripleChecker [40 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 155.39ms Time] [2021-11-07 17:32:39,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31525 states. [2021-11-07 17:32:39,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31525 to 31525. [2021-11-07 17:32:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31525 states, 31494 states have (on average 1.2960246396138948) internal successors, (40817), 31524 states have internal predecessors, (40817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:39,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31525 states to 31525 states and 40817 transitions. [2021-11-07 17:32:39,807 INFO L78 Accepts]: Start accepts. Automaton has 31525 states and 40817 transitions. Word has length 85 [2021-11-07 17:32:39,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:39,807 INFO L470 AbstractCegarLoop]: Abstraction has 31525 states and 40817 transitions. [2021-11-07 17:32:39,807 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) [2021-11-07 17:32:39,807 INFO L276 IsEmpty]: Start isEmpty. Operand 31525 states and 40817 transitions. [2021-11-07 17:32:39,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 17:32:39,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:39,818 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] [2021-11-07 17:32:39,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 17:32:39,818 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:39,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:39,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1281479611, now seen corresponding path program 1 times [2021-11-07 17:32:39,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:39,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033577040] [2021-11-07 17:32:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:39,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:39,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:39,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033577040] [2021-11-07 17:32:39,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033577040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:39,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:39,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:39,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244440347] [2021-11-07 17:32:39,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:39,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:39,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:39,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:39,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:39,985 INFO L87 Difference]: Start difference. First operand 31525 states and 40817 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) [2021-11-07 17:32:41,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:41,123 INFO L93 Difference]: Finished difference Result 31525 states and 40817 transitions. [2021-11-07 17:32:41,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:41,124 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 87 [2021-11-07 17:32:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:41,182 INFO L225 Difference]: With dead ends: 31525 [2021-11-07 17:32:41,183 INFO L226 Difference]: Without dead ends: 31519 [2021-11-07 17:32:41,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.49ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:41,200 INFO L933 BasicCegarLoop]: 3968 mSDtfsCounter, 3827 mSDsluCounter, 3945 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3827 SdHoareTripleChecker+Valid, 7913 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.93ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 143.36ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:41,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3827 Valid, 7913 Invalid, 132 Unknown, 0 Unchecked, 9.93ms Time], IncrementalHoareTripleChecker [44 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 143.36ms Time] [2021-11-07 17:32:41,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31519 states. [2021-11-07 17:32:42,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31519 to 31519. [2021-11-07 17:32:42,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31519 states, 31491 states have (on average 1.2959575751802102) internal successors, (40811), 31518 states have internal predecessors, (40811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:42,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31519 states to 31519 states and 40811 transitions. [2021-11-07 17:32:42,119 INFO L78 Accepts]: Start accepts. Automaton has 31519 states and 40811 transitions. Word has length 87 [2021-11-07 17:32:42,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:42,119 INFO L470 AbstractCegarLoop]: Abstraction has 31519 states and 40811 transitions. [2021-11-07 17:32:42,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-07 17:32:42,120 INFO L276 IsEmpty]: Start isEmpty. Operand 31519 states and 40811 transitions. [2021-11-07 17:32:42,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 17:32:42,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:42,124 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, 1, 1] [2021-11-07 17:32:42,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 17:32:42,125 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:42,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:42,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1153558402, now seen corresponding path program 1 times [2021-11-07 17:32:42,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:42,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988542790] [2021-11-07 17:32:42,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:42,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:42,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:42,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988542790] [2021-11-07 17:32:42,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988542790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:42,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:42,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:42,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078571700] [2021-11-07 17:32:42,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:42,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:42,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:42,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:42,302 INFO L87 Difference]: Start difference. First operand 31519 states and 40811 transitions. Second operand has 4 states, 4 states have (on average 20.0) 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) [2021-11-07 17:32:43,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:43,344 INFO L93 Difference]: Finished difference Result 31519 states and 40811 transitions. [2021-11-07 17:32:43,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:43,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) 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 89 [2021-11-07 17:32:43,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:43,388 INFO L225 Difference]: With dead ends: 31519 [2021-11-07 17:32:43,388 INFO L226 Difference]: Without dead ends: 31513 [2021-11-07 17:32:43,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.70ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:43,401 INFO L933 BasicCegarLoop]: 3970 mSDtfsCounter, 3899 mSDsluCounter, 3886 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3899 SdHoareTripleChecker+Valid, 7856 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.43ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 131.98ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:43,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3899 Valid, 7856 Invalid, 97 Unknown, 0 Unchecked, 10.43ms Time], IncrementalHoareTripleChecker [40 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 131.98ms Time] [2021-11-07 17:32:43,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31513 states. [2021-11-07 17:32:44,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31513 to 31513. [2021-11-07 17:32:44,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31513 states, 31488 states have (on average 1.2958904979674797) internal successors, (40805), 31512 states have internal predecessors, (40805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:44,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31513 states to 31513 states and 40805 transitions. [2021-11-07 17:32:44,235 INFO L78 Accepts]: Start accepts. Automaton has 31513 states and 40805 transitions. Word has length 89 [2021-11-07 17:32:44,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:44,235 INFO L470 AbstractCegarLoop]: Abstraction has 31513 states and 40805 transitions. [2021-11-07 17:32:44,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) 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) [2021-11-07 17:32:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 31513 states and 40805 transitions. [2021-11-07 17:32:44,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 17:32:44,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:44,250 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, 1, 1, 1, 1] [2021-11-07 17:32:44,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 17:32:44,251 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:44,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash -467912255, now seen corresponding path program 1 times [2021-11-07 17:32:44,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:44,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60262438] [2021-11-07 17:32:44,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:44,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:44,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:44,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:44,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60262438] [2021-11-07 17:32:44,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60262438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:44,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:44,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:44,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586147706] [2021-11-07 17:32:44,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:44,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:44,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:44,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:44,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:44,540 INFO L87 Difference]: Start difference. First operand 31513 states and 40805 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:45,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:45,644 INFO L93 Difference]: Finished difference Result 31513 states and 40805 transitions. [2021-11-07 17:32:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:45,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 91 [2021-11-07 17:32:45,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:45,687 INFO L225 Difference]: With dead ends: 31513 [2021-11-07 17:32:45,687 INFO L226 Difference]: Without dead ends: 31507 [2021-11-07 17:32:45,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.69ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:45,696 INFO L933 BasicCegarLoop]: 3962 mSDtfsCounter, 3866 mSDsluCounter, 3902 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3866 SdHoareTripleChecker+Valid, 7864 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.14ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 122.83ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:45,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3866 Valid, 7864 Invalid, 102 Unknown, 0 Unchecked, 9.14ms Time], IncrementalHoareTripleChecker [41 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 122.83ms Time] [2021-11-07 17:32:45,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31507 states. [2021-11-07 17:32:46,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31507 to 31507. [2021-11-07 17:32:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31507 states, 31485 states have (on average 1.29582340797205) internal successors, (40799), 31506 states have internal predecessors, (40799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:46,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31507 states to 31507 states and 40799 transitions. [2021-11-07 17:32:46,628 INFO L78 Accepts]: Start accepts. Automaton has 31507 states and 40799 transitions. Word has length 91 [2021-11-07 17:32:46,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:46,628 INFO L470 AbstractCegarLoop]: Abstraction has 31507 states and 40799 transitions. [2021-11-07 17:32:46,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 31507 states and 40799 transitions. [2021-11-07 17:32:46,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-07 17:32:46,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:46,632 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, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:46,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 17:32:46,632 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:46,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:46,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1308039044, now seen corresponding path program 1 times [2021-11-07 17:32:46,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:46,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125780152] [2021-11-07 17:32:46,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:46,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:46,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:46,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125780152] [2021-11-07 17:32:46,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125780152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:46,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:46,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:46,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164675541] [2021-11-07 17:32:46,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:46,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:46,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:46,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:46,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:46,811 INFO L87 Difference]: Start difference. First operand 31507 states and 40799 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:47,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:47,865 INFO L93 Difference]: Finished difference Result 31507 states and 40799 transitions. [2021-11-07 17:32:47,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:47,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-07 17:32:47,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:47,925 INFO L225 Difference]: With dead ends: 31507 [2021-11-07 17:32:47,926 INFO L226 Difference]: Without dead ends: 31501 [2021-11-07 17:32:47,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.90ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:47,945 INFO L933 BasicCegarLoop]: 3958 mSDtfsCounter, 3883 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3883 SdHoareTripleChecker+Valid, 7838 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.63ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.21ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:47,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3883 Valid, 7838 Invalid, 91 Unknown, 0 Unchecked, 10.63ms Time], IncrementalHoareTripleChecker [40 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 120.21ms Time] [2021-11-07 17:32:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31501 states. [2021-11-07 17:32:49,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31501 to 31501. [2021-11-07 17:32:49,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31501 states, 31482 states have (on average 1.2957563051902674) internal successors, (40793), 31500 states have internal predecessors, (40793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:49,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31501 states to 31501 states and 40793 transitions. [2021-11-07 17:32:49,215 INFO L78 Accepts]: Start accepts. Automaton has 31501 states and 40793 transitions. Word has length 93 [2021-11-07 17:32:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:49,215 INFO L470 AbstractCegarLoop]: Abstraction has 31501 states and 40793 transitions. [2021-11-07 17:32:49,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:49,216 INFO L276 IsEmpty]: Start isEmpty. Operand 31501 states and 40793 transitions. [2021-11-07 17:32:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 17:32:49,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:49,219 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:49,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 17:32:49,219 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:49,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:49,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1399746105, now seen corresponding path program 1 times [2021-11-07 17:32:49,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:49,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023305136] [2021-11-07 17:32:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:49,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:49,385 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:49,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:49,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023305136] [2021-11-07 17:32:49,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023305136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:49,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:49,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:49,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578119279] [2021-11-07 17:32:49,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:49,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:49,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:49,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:49,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:49,388 INFO L87 Difference]: Start difference. First operand 31501 states and 40793 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:50,330 INFO L93 Difference]: Finished difference Result 31501 states and 40793 transitions. [2021-11-07 17:32:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:32:50,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 95 [2021-11-07 17:32:50,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:50,377 INFO L225 Difference]: With dead ends: 31501 [2021-11-07 17:32:50,377 INFO L226 Difference]: Without dead ends: 31495 [2021-11-07 17:32:50,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.76ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:32:50,389 INFO L933 BasicCegarLoop]: 3952 mSDtfsCounter, 3875 mSDsluCounter, 3877 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 7829 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.98ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.93ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:50,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3875 Valid, 7829 Invalid, 88 Unknown, 0 Unchecked, 7.98ms Time], IncrementalHoareTripleChecker [40 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 81.93ms Time] [2021-11-07 17:32:50,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31495 states. [2021-11-07 17:32:51,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31495 to 31495. [2021-11-07 17:32:51,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31495 states, 31479 states have (on average 1.295689189618476) internal successors, (40787), 31494 states have internal predecessors, (40787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:51,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31495 states to 31495 states and 40787 transitions. [2021-11-07 17:32:51,577 INFO L78 Accepts]: Start accepts. Automaton has 31495 states and 40787 transitions. Word has length 95 [2021-11-07 17:32:51,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:51,578 INFO L470 AbstractCegarLoop]: Abstraction has 31495 states and 40787 transitions. [2021-11-07 17:32:51,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:51,578 INFO L276 IsEmpty]: Start isEmpty. Operand 31495 states and 40787 transitions. [2021-11-07 17:32:51,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 17:32:51,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:51,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:51,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 17:32:51,582 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-07 17:32:51,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:51,583 INFO L85 PathProgramCache]: Analyzing trace with hash -831092598, now seen corresponding path program 1 times [2021-11-07 17:32:51,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:51,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335592514] [2021-11-07 17:32:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:51,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:32:51,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:51,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335592514] [2021-11-07 17:32:51,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335592514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:51,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:51,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:51,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786288578] [2021-11-07 17:32:51,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:51,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:51,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:51,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:51,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:51,744 INFO L87 Difference]: Start difference. First operand 31495 states and 40787 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)