./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2fb57b2bb2bc18ca610846448c9906bd8fe64138062c47c98cb2cc2c7b0326e3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 15:48:53,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 15:48:53,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 15:48:53,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 15:48:53,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 15:48:53,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 15:48:53,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 15:48:53,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 15:48:53,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 15:48:53,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 15:48:53,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 15:48:53,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 15:48:53,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 15:48:53,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 15:48:53,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 15:48:53,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 15:48:53,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 15:48:53,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 15:48:53,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 15:48:53,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 15:48:53,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 15:48:53,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 15:48:53,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 15:48:53,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 15:48:53,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 15:48:53,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 15:48:53,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 15:48:53,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 15:48:53,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 15:48:53,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 15:48:53,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 15:48:53,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 15:48:53,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 15:48:53,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 15:48:53,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 15:48:53,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 15:48:53,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 15:48:53,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 15:48:53,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 15:48:53,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 15:48:53,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 15:48:53,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 15:48:53,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 15:48:53,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 15:48:53,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 15:48:53,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 15:48:53,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 15:48:53,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 15:48:53,746 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 15:48:53,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 15:48:53,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 15:48:53,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 15:48:53,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 15:48:53,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 15:48:53,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 15:48:53,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 15:48:53,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 15:48:53,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 15:48:53,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 15:48:53,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 15:48:53,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 15:48:53,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:48:53,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 15:48:53,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 15:48:53,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 15:48:53,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 15:48:53,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 15:48:53,750 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 15:48:53,750 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 15:48:53,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 15:48:53,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 15:48:53,751 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fb57b2bb2bc18ca610846448c9906bd8fe64138062c47c98cb2cc2c7b0326e3 [2021-11-06 15:48:53,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 15:48:53,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 15:48:53,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 15:48:53,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 15:48:53,968 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 15:48:53,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-06 15:48:54,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/766d9033b/86cd8dbdb2c84da8a124e21ec2854501/FLAG8c6647478 [2021-11-06 15:48:54,704 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 15:48:54,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-06 15:48:54,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/766d9033b/86cd8dbdb2c84da8a124e21ec2854501/FLAG8c6647478 [2021-11-06 15:48:54,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/766d9033b/86cd8dbdb2c84da8a124e21ec2854501 [2021-11-06 15:48:54,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 15:48:54,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 15:48:54,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 15:48:54,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 15:48:54,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 15:48:54,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:48:54" (1/1) ... [2021-11-06 15:48:54,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9e006f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:54, skipping insertion in model container [2021-11-06 15:48:54,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:48:54" (1/1) ... [2021-11-06 15:48:54,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 15:48:54,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 15:48:55,290 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4492] [2021-11-06 15:48:56,108 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i[415155,415168] [2021-11-06 15:48:56,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:48:56,191 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 15:48:56,272 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4492] [2021-11-06 15:48:56,563 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i[415155,415168] [2021-11-06 15:48:56,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:48:56,626 INFO L208 MainTranslator]: Completed translation [2021-11-06 15:48:56,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56 WrapperNode [2021-11-06 15:48:56,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 15:48:56,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 15:48:56,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 15:48:56,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 15:48:56,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:56,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:56,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 15:48:56,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 15:48:56,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 15:48:56,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 15:48:57,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:57,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:57,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:57,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:57,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:57,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:57,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:57,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 15:48:57,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 15:48:57,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 15:48:57,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 15:48:57,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (1/1) ... [2021-11-06 15:48:57,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:48:57,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:48:57,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 15:48:57,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 15:48:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-06 15:48:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-06 15:48:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_free_device [2021-11-06 15:48:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 15:48:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 15:48:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 15:48:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 15:48:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 15:48:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 15:48:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure drxk_gate_ctrl [2021-11-06 15:48:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure drxk_gate_ctrl [2021-11-06 15:48:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-06 15:48:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 15:48:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 15:48:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 15:48:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 15:48:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 15:49:53,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 15:49:53,482 INFO L299 CfgBuilder]: Removed 1922 assume(true) statements. [2021-11-06 15:49:53,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:49:53 BoogieIcfgContainer [2021-11-06 15:49:53,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 15:49:53,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 15:49:53,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 15:49:53,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 15:49:53,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:48:54" (1/3) ... [2021-11-06 15:49:53,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5446c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:49:53, skipping insertion in model container [2021-11-06 15:49:53,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:48:56" (2/3) ... [2021-11-06 15:49:53,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5446c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:49:53, skipping insertion in model container [2021-11-06 15:49:53,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:49:53" (3/3) ... [2021-11-06 15:49:53,490 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-06 15:49:53,493 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 15:49:53,493 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-06 15:49:53,560 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 15:49:53,564 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 15:49:53,564 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-06 15:49:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 2902 states, 2861 states have (on average 1.5718280321565885) internal successors, (4497), 2892 states have internal predecessors, (4497), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-06 15:49:53,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-06 15:49:53,681 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:49:53,682 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:49:53,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:49:53,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:49:53,687 INFO L85 PathProgramCache]: Analyzing trace with hash 237456437, now seen corresponding path program 1 times [2021-11-06 15:49:53,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:49:53,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418727150] [2021-11-06 15:49:53,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:49:53,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:49:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:49:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:49:54,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:49:54,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418727150] [2021-11-06 15:49:54,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418727150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:49:54,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:49:54,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 15:49:54,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304460239] [2021-11-06 15:49:54,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 15:49:54,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:49:54,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 15:49:54,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 15:49:54,218 INFO L87 Difference]: Start difference. First operand has 2902 states, 2861 states have (on average 1.5718280321565885) internal successors, (4497), 2892 states have internal predecessors, (4497), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:49:54,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:49:54,313 INFO L93 Difference]: Finished difference Result 5800 states and 9017 transitions. [2021-11-06 15:49:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 15:49:54,314 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-11-06 15:49:54,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:49:54,329 INFO L225 Difference]: With dead ends: 5800 [2021-11-06 15:49:54,329 INFO L226 Difference]: Without dead ends: 2894 [2021-11-06 15:49:54,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 15:49:54,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-11-06 15:49:54,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2894. [2021-11-06 15:49:54,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 2854 states have (on average 1.5091100210231254) internal successors, (4307), 2884 states have internal predecessors, (4307), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-06 15:49:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 4321 transitions. [2021-11-06 15:49:54,413 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 4321 transitions. Word has length 16 [2021-11-06 15:49:54,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:49:54,413 INFO L470 AbstractCegarLoop]: Abstraction has 2894 states and 4321 transitions. [2021-11-06 15:49:54,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:49:54,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 4321 transitions. [2021-11-06 15:49:54,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-06 15:49:54,414 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:49:54,414 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:49:54,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 15:49:54,415 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:49:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:49:54,415 INFO L85 PathProgramCache]: Analyzing trace with hash -349349577, now seen corresponding path program 1 times [2021-11-06 15:49:54,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:49:54,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009246659] [2021-11-06 15:49:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:49:54,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:49:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:49:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:49:54,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:49:54,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009246659] [2021-11-06 15:49:54,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009246659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:49:54,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:49:54,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:49:54,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138795273] [2021-11-06 15:49:54,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:49:54,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:49:54,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:49:54,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:49:54,662 INFO L87 Difference]: Start difference. First operand 2894 states and 4321 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:49:57,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:49:57,015 INFO L93 Difference]: Finished difference Result 8656 states and 12936 transitions. [2021-11-06 15:49:57,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:49:57,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-11-06 15:49:57,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:49:57,037 INFO L225 Difference]: With dead ends: 8656 [2021-11-06 15:49:57,037 INFO L226 Difference]: Without dead ends: 5769 [2021-11-06 15:49:57,045 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:49:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5769 states. [2021-11-06 15:49:57,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5769 to 5709. [2021-11-06 15:49:57,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5709 states, 5660 states have (on average 1.5125441696113073) internal successors, (8561), 5690 states have internal predecessors, (8561), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-06 15:49:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5709 states to 5709 states and 8589 transitions. [2021-11-06 15:49:57,179 INFO L78 Accepts]: Start accepts. Automaton has 5709 states and 8589 transitions. Word has length 16 [2021-11-06 15:49:57,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:49:57,180 INFO L470 AbstractCegarLoop]: Abstraction has 5709 states and 8589 transitions. [2021-11-06 15:49:57,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:49:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5709 states and 8589 transitions. [2021-11-06 15:49:57,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-06 15:49:57,187 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:49:57,187 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:49:57,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 15:49:57,189 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:49:57,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:49:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash -129558624, now seen corresponding path program 1 times [2021-11-06 15:49:57,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:49:57,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964730024] [2021-11-06 15:49:57,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:49:57,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:49:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:49:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:49:57,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:49:57,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964730024] [2021-11-06 15:49:57,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964730024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:49:57,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:49:57,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 15:49:57,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638359740] [2021-11-06 15:49:57,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:49:57,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:49:57,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:49:57,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:49:57,427 INFO L87 Difference]: Start difference. First operand 5709 states and 8589 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:49:58,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:49:58,379 INFO L93 Difference]: Finished difference Result 17051 states and 25692 transitions. [2021-11-06 15:49:58,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:49:58,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-06 15:49:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:49:58,412 INFO L225 Difference]: With dead ends: 17051 [2021-11-06 15:49:58,412 INFO L226 Difference]: Without dead ends: 11347 [2021-11-06 15:49:58,423 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:49:58,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2021-11-06 15:49:58,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 11257. [2021-11-06 15:49:58,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11257 states, 11190 states have (on average 1.51295799821269) internal successors, (16930), 11220 states have internal predecessors, (16930), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-06 15:49:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11257 states to 11257 states and 16986 transitions. [2021-11-06 15:49:58,619 INFO L78 Accepts]: Start accepts. Automaton has 11257 states and 16986 transitions. Word has length 19 [2021-11-06 15:49:58,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:49:58,619 INFO L470 AbstractCegarLoop]: Abstraction has 11257 states and 16986 transitions. [2021-11-06 15:49:58,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:49:58,620 INFO L276 IsEmpty]: Start isEmpty. Operand 11257 states and 16986 transitions. [2021-11-06 15:49:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-06 15:49:58,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:49:58,621 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:49:58,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 15:49:58,621 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:49:58,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:49:58,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1016835877, now seen corresponding path program 1 times [2021-11-06 15:49:58,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:49:58,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820143383] [2021-11-06 15:49:58,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:49:58,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:49:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:49:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:49:58,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:49:58,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820143383] [2021-11-06 15:49:58,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820143383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:49:58,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:49:58,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:49:58,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952560596] [2021-11-06 15:49:58,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:49:58,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:49:58,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:49:58,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:49:58,853 INFO L87 Difference]: Start difference. First operand 11257 states and 16986 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:49:59,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:49:59,472 INFO L93 Difference]: Finished difference Result 22763 states and 34304 transitions. [2021-11-06 15:49:59,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:49:59,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-11-06 15:49:59,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:49:59,610 INFO L225 Difference]: With dead ends: 22763 [2021-11-06 15:49:59,610 INFO L226 Difference]: Without dead ends: 11513 [2021-11-06 15:49:59,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:49:59,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11513 states. [2021-11-06 15:49:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11513 to 11509. [2021-11-06 15:49:59,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11509 states, 11442 states have (on average 1.5086523335081279) internal successors, (17262), 11472 states have internal predecessors, (17262), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-06 15:49:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11509 states to 11509 states and 17318 transitions. [2021-11-06 15:49:59,811 INFO L78 Accepts]: Start accepts. Automaton has 11509 states and 17318 transitions. Word has length 24 [2021-11-06 15:49:59,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:49:59,811 INFO L470 AbstractCegarLoop]: Abstraction has 11509 states and 17318 transitions. [2021-11-06 15:49:59,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:49:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 11509 states and 17318 transitions. [2021-11-06 15:49:59,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 15:49:59,813 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:49:59,813 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:49:59,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 15:49:59,813 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:49:59,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:49:59,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1285357015, now seen corresponding path program 1 times [2021-11-06 15:49:59,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:49:59,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40446824] [2021-11-06 15:49:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:49:59,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:49:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:50:00,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:50:00,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:50:00,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40446824] [2021-11-06 15:50:00,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40446824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:50:00,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:50:00,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:50:00,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778992781] [2021-11-06 15:50:00,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:50:00,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:50:00,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:50:00,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:50:00,091 INFO L87 Difference]: Start difference. First operand 11509 states and 17318 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:50:02,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:50:02,948 INFO L93 Difference]: Finished difference Result 23395 states and 35216 transitions. [2021-11-06 15:50:02,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:50:02,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2021-11-06 15:50:02,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:50:02,967 INFO L225 Difference]: With dead ends: 23395 [2021-11-06 15:50:02,967 INFO L226 Difference]: Without dead ends: 11893 [2021-11-06 15:50:02,982 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:50:02,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11893 states. [2021-11-06 15:50:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11893 to 11889. [2021-11-06 15:50:03,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11889 states, 11822 states have (on average 1.5021147014041618) internal successors, (17758), 11852 states have internal predecessors, (17758), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-06 15:50:03,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11889 states to 11889 states and 17814 transitions. [2021-11-06 15:50:03,138 INFO L78 Accepts]: Start accepts. Automaton has 11889 states and 17814 transitions. Word has length 39 [2021-11-06 15:50:03,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:50:03,139 INFO L470 AbstractCegarLoop]: Abstraction has 11889 states and 17814 transitions. [2021-11-06 15:50:03,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:50:03,139 INFO L276 IsEmpty]: Start isEmpty. Operand 11889 states and 17814 transitions. [2021-11-06 15:50:03,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-06 15:50:03,141 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:50:03,141 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:50:03,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 15:50:03,142 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:50:03,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:50:03,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1711536067, now seen corresponding path program 1 times [2021-11-06 15:50:03,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:50:03,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929301751] [2021-11-06 15:50:03,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:50:03,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:50:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:50:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:50:08,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:50:08,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929301751] [2021-11-06 15:50:08,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929301751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:50:08,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:50:08,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-06 15:50:08,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17034835] [2021-11-06 15:50:08,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 15:50:08,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:50:08,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 15:50:08,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-06 15:50:08,478 INFO L87 Difference]: Start difference. First operand 11889 states and 17814 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:52:33,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:52:33,449 INFO L93 Difference]: Finished difference Result 25414 states and 38103 transitions. [2021-11-06 15:52:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-06 15:52:33,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-06 15:52:33,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:52:33,474 INFO L225 Difference]: With dead ends: 25414 [2021-11-06 15:52:33,474 INFO L226 Difference]: Without dead ends: 13532 [2021-11-06 15:52:33,491 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-06 15:52:33,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13532 states. [2021-11-06 15:52:33,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13532 to 12645. [2021-11-06 15:52:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12645 states, 12578 states have (on average 1.5018285896008905) internal successors, (18890), 12608 states have internal predecessors, (18890), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-06 15:52:33,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12645 states to 12645 states and 18946 transitions. [2021-11-06 15:52:33,834 INFO L78 Accepts]: Start accepts. Automaton has 12645 states and 18946 transitions. Word has length 41 [2021-11-06 15:52:33,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:52:33,847 INFO L470 AbstractCegarLoop]: Abstraction has 12645 states and 18946 transitions. [2021-11-06 15:52:33,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:52:33,847 INFO L276 IsEmpty]: Start isEmpty. Operand 12645 states and 18946 transitions. [2021-11-06 15:52:33,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-06 15:52:33,849 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:52:33,849 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 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] [2021-11-06 15:52:33,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 15:52:33,850 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:52:33,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:52:33,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1208147471, now seen corresponding path program 1 times [2021-11-06 15:52:33,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:52:33,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701501963] [2021-11-06 15:52:33,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:52:33,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:52:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:52:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-06 15:52:34,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:52:34,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701501963] [2021-11-06 15:52:34,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701501963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:52:34,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:52:34,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:52:34,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877888467] [2021-11-06 15:52:34,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:52:34,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:52:34,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:52:34,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:52:34,116 INFO L87 Difference]: Start difference. First operand 12645 states and 18946 transitions. Second operand has 3 states, 3 states have (on average 22.0) 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) [2021-11-06 15:52:37,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:52:37,030 INFO L93 Difference]: Finished difference Result 25871 states and 38832 transitions. [2021-11-06 15:52:37,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:52:37,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) 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 70 [2021-11-06 15:52:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:52:37,057 INFO L225 Difference]: With dead ends: 25871 [2021-11-06 15:52:37,057 INFO L226 Difference]: Without dead ends: 13233 [2021-11-06 15:52:37,074 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:52:37,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13233 states. [2021-11-06 15:52:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13233 to 13229. [2021-11-06 15:52:37,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13229 states, 13162 states have (on average 1.4941498252545207) internal successors, (19666), 13192 states have internal predecessors, (19666), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-06 15:52:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13229 states to 13229 states and 19722 transitions. [2021-11-06 15:52:37,269 INFO L78 Accepts]: Start accepts. Automaton has 13229 states and 19722 transitions. Word has length 70 [2021-11-06 15:52:37,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:52:37,269 INFO L470 AbstractCegarLoop]: Abstraction has 13229 states and 19722 transitions. [2021-11-06 15:52:37,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) 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) [2021-11-06 15:52:37,270 INFO L276 IsEmpty]: Start isEmpty. Operand 13229 states and 19722 transitions. [2021-11-06 15:52:37,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-06 15:52:37,272 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:52:37,273 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 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] [2021-11-06 15:52:37,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 15:52:37,273 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:52:37,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:52:37,273 INFO L85 PathProgramCache]: Analyzing trace with hash -703711151, now seen corresponding path program 1 times [2021-11-06 15:52:37,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:52:37,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134564798] [2021-11-06 15:52:37,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:52:37,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:52:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:52:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-06 15:52:38,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:52:38,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134564798] [2021-11-06 15:52:38,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134564798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:52:38,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:52:38,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 15:52:38,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775065599] [2021-11-06 15:52:38,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 15:52:38,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:52:38,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 15:52:38,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 15:52:38,132 INFO L87 Difference]: Start difference. First operand 13229 states and 19722 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:52:48,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:52:48,308 INFO L93 Difference]: Finished difference Result 51025 states and 77062 transitions. [2021-11-06 15:52:48,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 15:52:48,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 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 73 [2021-11-06 15:52:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:52:48,368 INFO L225 Difference]: With dead ends: 51025 [2021-11-06 15:52:48,368 INFO L226 Difference]: Without dead ends: 37803 [2021-11-06 15:52:48,392 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-06 15:52:48,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37803 states. [2021-11-06 15:52:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37803 to 13269. [2021-11-06 15:52:48,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13269 states, 13202 states have (on average 1.492652628389638) internal successors, (19706), 13232 states have internal predecessors, (19706), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-06 15:52:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13269 states to 13269 states and 19762 transitions. [2021-11-06 15:52:48,738 INFO L78 Accepts]: Start accepts. Automaton has 13269 states and 19762 transitions. Word has length 73 [2021-11-06 15:52:48,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:52:48,738 INFO L470 AbstractCegarLoop]: Abstraction has 13269 states and 19762 transitions. [2021-11-06 15:52:48,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:52:48,738 INFO L276 IsEmpty]: Start isEmpty. Operand 13269 states and 19762 transitions. [2021-11-06 15:52:48,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-06 15:52:48,740 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:52:48,740 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 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] [2021-11-06 15:52:48,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 15:52:48,741 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:52:48,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:52:48,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1118644981, now seen corresponding path program 1 times [2021-11-06 15:52:48,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:52:48,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292791560] [2021-11-06 15:52:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:52:48,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:52:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:52:51,503 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 15:52:51,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:52:51,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292791560] [2021-11-06 15:52:51,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292791560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:52:51,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:52:51,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-06 15:52:51,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138223374] [2021-11-06 15:52:51,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 15:52:51,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:52:51,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 15:52:51,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-06 15:52:51,504 INFO L87 Difference]: Start difference. First operand 13269 states and 19762 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:55:19,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:55:19,889 INFO L93 Difference]: Finished difference Result 27614 states and 41115 transitions. [2021-11-06 15:55:19,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-06 15:55:19,889 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 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 75 [2021-11-06 15:55:19,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:55:19,910 INFO L225 Difference]: With dead ends: 27614 [2021-11-06 15:55:19,910 INFO L226 Difference]: Without dead ends: 14352 [2021-11-06 15:55:19,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-06 15:55:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14352 states. [2021-11-06 15:55:20,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14352 to 13217. [2021-11-06 15:55:20,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13217 states, 13150 states have (on average 1.4936882129277567) internal successors, (19642), 13180 states have internal predecessors, (19642), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-06 15:55:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13217 states to 13217 states and 19698 transitions. [2021-11-06 15:55:20,149 INFO L78 Accepts]: Start accepts. Automaton has 13217 states and 19698 transitions. Word has length 75 [2021-11-06 15:55:20,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:55:20,150 INFO L470 AbstractCegarLoop]: Abstraction has 13217 states and 19698 transitions. [2021-11-06 15:55:20,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:55:20,150 INFO L276 IsEmpty]: Start isEmpty. Operand 13217 states and 19698 transitions. [2021-11-06 15:55:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 15:55:20,152 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:55:20,152 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:55:20,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 15:55:20,152 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-06 15:55:20,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:55:20,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1597542499, now seen corresponding path program 1 times [2021-11-06 15:55:20,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:55:20,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509008857] [2021-11-06 15:55:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:55:20,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:55:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:55:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:55:25,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:55:25,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509008857] [2021-11-06 15:55:25,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509008857] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:55:25,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840098253] [2021-11-06 15:55:25,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:55:25,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:55:25,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:55:25,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:55:25,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 15:55:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:55:26,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 3698 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-06 15:55:26,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:55:27,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-06 15:55:32,571 WARN L207 SmtUtils]: Spent 5.18 s on a formula simplification. DAG size of input: 26 DAG size of output: 5 [2021-11-06 15:55:32,572 INFO L354 Elim1Store]: treesize reduction 36, result has 12.2 percent of original size [2021-11-06 15:55:32,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16519 treesize of output 7324 [2021-11-06 15:55:47,632 WARN L207 SmtUtils]: Spent 15.04 s on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2021-11-06 15:55:47,633 INFO L354 Elim1Store]: treesize reduction 56, result has 29.1 percent of original size [2021-11-06 15:55:47,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 7321 treesize of output 4024 [2021-11-06 15:56:08,895 WARN L207 SmtUtils]: Spent 21.24 s on a formula simplification. DAG size of input: 56 DAG size of output: 26 [2021-11-06 15:56:08,896 INFO L354 Elim1Store]: treesize reduction 90, result has 30.8 percent of original size [2021-11-06 15:56:08,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 4031 treesize of output 2413 [2021-11-06 15:56:26,513 WARN L207 SmtUtils]: Spent 17.60 s on a formula simplification. DAG size of input: 83 DAG size of output: 35 [2021-11-06 15:56:26,514 INFO L354 Elim1Store]: treesize reduction 152, result has 27.3 percent of original size [2021-11-06 15:56:26,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 2415 treesize of output 1329 [2021-11-06 15:56:41,363 WARN L207 SmtUtils]: Spent 14.82 s on a formula simplification. DAG size of input: 110 DAG size of output: 44 [2021-11-06 15:56:41,364 INFO L354 Elim1Store]: treesize reduction 207, result has 26.3 percent of original size [2021-11-06 15:56:41,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 1331 treesize of output 836 [2021-11-06 15:56:54,403 WARN L207 SmtUtils]: Spent 13.01 s on a formula simplification. DAG size of input: 141 DAG size of output: 53 [2021-11-06 15:56:54,404 INFO L354 Elim1Store]: treesize reduction 270, result has 25.2 percent of original size [2021-11-06 15:56:54,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 843 treesize of output 651 [2021-11-06 15:57:03,047 WARN L207 SmtUtils]: Spent 8.62 s on a formula simplification. DAG size of input: 172 DAG size of output: 62 [2021-11-06 15:57:03,048 INFO L354 Elim1Store]: treesize reduction 306, result has 26.1 percent of original size [2021-11-06 15:57:03,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 658 treesize of output 660 [2021-11-06 15:57:11,637 WARN L207 SmtUtils]: Spent 8.56 s on a formula simplification. DAG size of input: 215 DAG size of output: 71 [2021-11-06 15:57:11,638 INFO L354 Elim1Store]: treesize reduction 420, result has 22.9 percent of original size [2021-11-06 15:57:11,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 667 treesize of output 721 [2021-11-06 15:57:19,318 WARN L207 SmtUtils]: Spent 7.64 s on a formula simplification. DAG size of input: 262 DAG size of output: 80 [2021-11-06 15:57:19,319 INFO L354 Elim1Store]: treesize reduction 552, result has 20.5 percent of original size [2021-11-06 15:57:19,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 54 case distinctions, treesize of input 723 treesize of output 823 [2021-11-06 15:57:28,507 WARN L207 SmtUtils]: Spent 9.08 s on a formula simplification. DAG size of input: 300 DAG size of output: 89 [2021-11-06 15:57:28,508 INFO L354 Elim1Store]: treesize reduction 552, result has 22.4 percent of original size [2021-11-06 15:57:28,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 830 treesize of output 965 [2021-11-06 15:57:29,425 INFO L354 Elim1Store]: treesize reduction 64, result has 16.9 percent of original size [2021-11-06 15:57:29,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 977 treesize of output 970 [2021-11-06 15:57:34,916 INFO L354 Elim1Store]: treesize reduction 64, result has 16.9 percent of original size [2021-11-06 15:57:34,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 20 [2021-11-06 15:57:48,035 INFO L354 Elim1Store]: treesize reduction 64, result has 16.9 percent of original size [2021-11-06 15:57:48,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 20 [2021-11-06 15:57:54,014 INFO L354 Elim1Store]: treesize reduction 64, result has 16.9 percent of original size [2021-11-06 15:57:54,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 23 [2021-11-06 15:59:10,641 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-06 15:59:19,732 WARN L234 Elim1Store]: Array PQE input equivalent to false Killed by 15