/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:44:19,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:44:19,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:44:19,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:44:19,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:44:19,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:44:19,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:44:19,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:44:19,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:44:19,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:44:19,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:44:19,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:44:19,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:44:19,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:44:19,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:44:19,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:44:19,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:44:19,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:44:19,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:44:19,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:44:19,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:44:19,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:44:19,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:44:19,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:44:19,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 17:44:19,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:44:19,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:44:19,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:44:19,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:44:19,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:44:19,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:44:19,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:44:19,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:44:19,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:44:19,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:44:19,851 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:44:19,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:44:19,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:44:19,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:44:19,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:44:19,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:44:19,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:44:19,852 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:44:19,852 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:44:19,853 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:44:19,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:44:19,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:44:19,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:44:19,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:44:19,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:44:19,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:44:19,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:44:19,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:44:19,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:44:19,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:44:19,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:44:19,854 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:44:19,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:44:19,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:44:19,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:44:19,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:44:19,856 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:44:19,856 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:44:19,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:44:20,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:44:20,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:44:20,038 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:44:20,038 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:44:20,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2022-01-10 17:44:20,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/117e24ebf/9eab9d2c9f6c40239ee0346c72ece368/FLAGe90eb165b [2022-01-10 17:44:20,794 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:44:20,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2022-01-10 17:44:20,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/117e24ebf/9eab9d2c9f6c40239ee0346c72ece368/FLAGe90eb165b [2022-01-10 17:44:21,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/117e24ebf/9eab9d2c9f6c40239ee0346c72ece368 [2022-01-10 17:44:21,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:44:21,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:44:21,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:44:21,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:44:21,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:44:21,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3672d839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21, skipping insertion in model container [2022-01-10 17:44:21,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:44:21,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:44:21,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22665,22678] [2022-01-10 17:44:21,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22735,22748] [2022-01-10 17:44:21,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22799,22812] [2022-01-10 17:44:21,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22894,22907] [2022-01-10 17:44:21,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22966,22979] [2022-01-10 17:44:21,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[23105,23118] [2022-01-10 17:44:21,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[23179,23192] [2022-01-10 17:44:21,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:44:21,613 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:44:21,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22665,22678] [2022-01-10 17:44:21,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22735,22748] [2022-01-10 17:44:21,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22799,22812] [2022-01-10 17:44:21,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22894,22907] [2022-01-10 17:44:21,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22966,22979] [2022-01-10 17:44:21,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[23105,23118] [2022-01-10 17:44:21,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[23179,23192] [2022-01-10 17:44:21,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:44:21,737 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:44:21,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21 WrapperNode [2022-01-10 17:44:21,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:44:21,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:44:21,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:44:21,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:44:21,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,818 INFO L137 Inliner]: procedures = 122, calls = 43, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 155 [2022-01-10 17:44:21,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:44:21,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:44:21,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:44:21,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:44:21,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:44:21,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:44:21,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:44:21,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:44:21,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (1/1) ... [2022-01-10 17:44:21,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:44:21,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:44:21,903 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) [2022-01-10 17:44:21,941 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 [2022-01-10 17:44:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 17:44:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 17:44:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:44:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 17:44:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 17:44:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 17:44:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 17:44:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:44:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:44:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:44:22,099 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:44:22,100 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:44:22,622 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:44:22,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:44:22,626 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-01-10 17:44:22,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:44:22 BoogieIcfgContainer [2022-01-10 17:44:22,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:44:22,628 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:44:22,628 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:44:22,629 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:44:22,631 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:44:22" (1/1) ... [2022-01-10 17:44:22,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:44:22 BasicIcfg [2022-01-10 17:44:22,684 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:44:22,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:44:22,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:44:22,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:44:22,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:44:21" (1/4) ... [2022-01-10 17:44:22,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2724f0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:44:22, skipping insertion in model container [2022-01-10 17:44:22,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:44:21" (2/4) ... [2022-01-10 17:44:22,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2724f0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:44:22, skipping insertion in model container [2022-01-10 17:44:22,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:44:22" (3/4) ... [2022-01-10 17:44:22,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2724f0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:44:22, skipping insertion in model container [2022-01-10 17:44:22,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:44:22" (4/4) ... [2022-01-10 17:44:22,690 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.iTransformedIcfg [2022-01-10 17:44:22,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:44:22,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-01-10 17:44:22,724 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:44:22,730 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 [2022-01-10 17:44:22,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-10 17:44:22,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 38 states have (on average 1.9736842105263157) internal successors, (75), 45 states have internal predecessors, (75), 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) [2022-01-10 17:44:22,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 17:44:22,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:22,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 17:44:22,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:22,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2096047403, now seen corresponding path program 1 times [2022-01-10 17:44:22,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:22,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393622163] [2022-01-10 17:44:22,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:22,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:22,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:22,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393622163] [2022-01-10 17:44:22,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393622163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:44:22,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:44:22,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:44:22,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159072299] [2022-01-10 17:44:22,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:44:22,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 17:44:22,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:22,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 17:44:22,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 17:44:22,956 INFO L87 Difference]: Start difference. First operand has 46 states, 38 states have (on average 1.9736842105263157) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-01-10 17:44:22,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:22,972 INFO L93 Difference]: Finished difference Result 90 states and 148 transitions. [2022-01-10 17:44:22,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 17:44:22,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-01-10 17:44:22,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:22,979 INFO L225 Difference]: With dead ends: 90 [2022-01-10 17:44:22,979 INFO L226 Difference]: Without dead ends: 40 [2022-01-10 17:44:22,981 INFO L932 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 [2022-01-10 17:44:22,984 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:22,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:44:22,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-01-10 17:44:23,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-01-10 17:44:23,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.303030303030303) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:44:23,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-01-10 17:44:23,009 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 6 [2022-01-10 17:44:23,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:23,009 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-01-10 17:44:23,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-01-10 17:44:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-01-10 17:44:23,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 17:44:23,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:23,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 17:44:23,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:44:23,011 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:23,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:23,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2096077194, now seen corresponding path program 1 times [2022-01-10 17:44:23,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:23,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940082202] [2022-01-10 17:44:23,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:23,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:23,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:23,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940082202] [2022-01-10 17:44:23,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940082202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:44:23,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:44:23,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:44:23,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570521062] [2022-01-10 17:44:23,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:44:23,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:44:23,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:23,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:44:23,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:44:23,184 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-01-10 17:44:23,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:23,303 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-01-10 17:44:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:44:23,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-01-10 17:44:23,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:23,305 INFO L225 Difference]: With dead ends: 45 [2022-01-10 17:44:23,305 INFO L226 Difference]: Without dead ends: 43 [2022-01-10 17:44:23,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:44:23,306 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 50 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:23,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 45 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:44:23,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-01-10 17:44:23,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2022-01-10 17:44:23,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.28125) internal successors, (41), 37 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) [2022-01-10 17:44:23,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-01-10 17:44:23,311 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 6 [2022-01-10 17:44:23,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:23,311 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-01-10 17:44:23,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-01-10 17:44:23,312 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-01-10 17:44:23,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 17:44:23,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:23,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:44:23,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:44:23,312 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:23,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:23,313 INFO L85 PathProgramCache]: Analyzing trace with hash 554839146, now seen corresponding path program 1 times [2022-01-10 17:44:23,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:23,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103521959] [2022-01-10 17:44:23,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:23,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:23,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:23,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:23,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103521959] [2022-01-10 17:44:23,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103521959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:44:23,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:44:23,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:44:23,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557175736] [2022-01-10 17:44:23,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:44:23,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:44:23,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:23,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:44:23,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:44:23,421 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-01-10 17:44:23,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:23,518 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-01-10 17:44:23,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:44:23,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-01-10 17:44:23,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:23,519 INFO L225 Difference]: With dead ends: 38 [2022-01-10 17:44:23,520 INFO L226 Difference]: Without dead ends: 36 [2022-01-10 17:44:23,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:44:23,521 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 12 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:23,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 77 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:44:23,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-01-10 17:44:23,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-01-10 17:44:23,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 35 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) [2022-01-10 17:44:23,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-01-10 17:44:23,525 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 7 [2022-01-10 17:44:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:23,526 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-01-10 17:44:23,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-01-10 17:44:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-01-10 17:44:23,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 17:44:23,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:23,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:44:23,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:44:23,527 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:23,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:23,527 INFO L85 PathProgramCache]: Analyzing trace with hash -292649046, now seen corresponding path program 1 times [2022-01-10 17:44:23,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:23,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422839619] [2022-01-10 17:44:23,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:23,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:23,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:23,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:23,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422839619] [2022-01-10 17:44:23,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422839619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:44:23,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:44:23,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:44:23,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845350562] [2022-01-10 17:44:23,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:44:23,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:44:23,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:23,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:44:23,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:44:23,658 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-01-10 17:44:23,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:23,842 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2022-01-10 17:44:23,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 17:44:23,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2022-01-10 17:44:23,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:23,843 INFO L225 Difference]: With dead ends: 60 [2022-01-10 17:44:23,843 INFO L226 Difference]: Without dead ends: 58 [2022-01-10 17:44:23,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:44:23,844 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 37 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:23,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 88 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:44:23,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-01-10 17:44:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 42. [2022-01-10 17:44:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 41 states have internal predecessors, (46), 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) [2022-01-10 17:44:23,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-01-10 17:44:23,850 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 9 [2022-01-10 17:44:23,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:23,850 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-01-10 17:44:23,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-01-10 17:44:23,850 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-01-10 17:44:23,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 17:44:23,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:23,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:44:23,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:44:23,851 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:23,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:23,851 INFO L85 PathProgramCache]: Analyzing trace with hash -2114934798, now seen corresponding path program 1 times [2022-01-10 17:44:23,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:23,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688545579] [2022-01-10 17:44:23,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:23,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:24,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:24,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:24,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688545579] [2022-01-10 17:44:24,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688545579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:44:24,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:44:24,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:44:24,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598468342] [2022-01-10 17:44:24,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:44:24,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:44:24,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:24,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:44:24,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:44:24,005 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-01-10 17:44:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:24,115 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2022-01-10 17:44:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:44:24,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2022-01-10 17:44:24,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:24,116 INFO L225 Difference]: With dead ends: 42 [2022-01-10 17:44:24,116 INFO L226 Difference]: Without dead ends: 40 [2022-01-10 17:44:24,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:44:24,118 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 38 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:24,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 62 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:44:24,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-01-10 17:44:24,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-01-10 17:44:24,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 39 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:44:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2022-01-10 17:44:24,125 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 10 [2022-01-10 17:44:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:24,125 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2022-01-10 17:44:24,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-01-10 17:44:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-01-10 17:44:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 17:44:24,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:24,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:44:24,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:44:24,126 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:24,127 INFO L85 PathProgramCache]: Analyzing trace with hash -932771070, now seen corresponding path program 1 times [2022-01-10 17:44:24,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:24,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245642822] [2022-01-10 17:44:24,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:24,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:24,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:24,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:24,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245642822] [2022-01-10 17:44:24,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245642822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:44:24,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:44:24,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:44:24,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242893638] [2022-01-10 17:44:24,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:44:24,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:44:24,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:24,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:44:24,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:44:24,274 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-01-10 17:44:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:24,382 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-01-10 17:44:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:44:24,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-01-10 17:44:24,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:24,382 INFO L225 Difference]: With dead ends: 40 [2022-01-10 17:44:24,383 INFO L226 Difference]: Without dead ends: 38 [2022-01-10 17:44:24,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:44:24,383 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 44 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:24,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 52 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:44:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-01-10 17:44:24,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-01-10 17:44:24,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.2) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:44:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-01-10 17:44:24,387 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 12 [2022-01-10 17:44:24,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:24,388 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-01-10 17:44:24,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-01-10 17:44:24,388 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-01-10 17:44:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 17:44:24,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:24,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:44:24,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:44:24,388 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:24,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:24,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1904474946, now seen corresponding path program 1 times [2022-01-10 17:44:24,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:24,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719341425] [2022-01-10 17:44:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:24,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:24,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:24,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719341425] [2022-01-10 17:44:24,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719341425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:44:24,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:44:24,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:44:24,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047452465] [2022-01-10 17:44:24,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:44:24,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 17:44:24,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:24,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 17:44:24,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:44:24,478 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-01-10 17:44:24,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:24,619 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2022-01-10 17:44:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 17:44:24,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-01-10 17:44:24,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:24,620 INFO L225 Difference]: With dead ends: 53 [2022-01-10 17:44:24,620 INFO L226 Difference]: Without dead ends: 41 [2022-01-10 17:44:24,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:44:24,621 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:24,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 74 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:44:24,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-01-10 17:44:24,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-01-10 17:44:24,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 39 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:44:24,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2022-01-10 17:44:24,625 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 13 [2022-01-10 17:44:24,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:24,625 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2022-01-10 17:44:24,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-01-10 17:44:24,625 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-01-10 17:44:24,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 17:44:24,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:24,625 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:44:24,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:44:24,626 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:24,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:24,626 INFO L85 PathProgramCache]: Analyzing trace with hash -275261104, now seen corresponding path program 1 times [2022-01-10 17:44:24,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:24,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542551016] [2022-01-10 17:44:24,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:24,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:24,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:24,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542551016] [2022-01-10 17:44:24,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542551016] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 17:44:24,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141110038] [2022-01-10 17:44:24,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:24,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 17:44:24,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:44:24,716 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) [2022-01-10 17:44:24,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 17:44:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:24,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 26 conjunts are in the unsatisfiable core [2022-01-10 17:44:24,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 17:44:24,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:24,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:24,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:24,925 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 25 treesize of output 30 [2022-01-10 17:44:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:24,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:24,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:24,942 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 25 treesize of output 30 [2022-01-10 17:44:25,210 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-01-10 17:44:25,217 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:25,218 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-01-10 17:44:25,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:25,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 17:44:25,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:25,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141110038] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 17:44:25,359 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 17:44:25,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-01-10 17:44:25,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761910241] [2022-01-10 17:44:25,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 17:44:25,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 17:44:25,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:25,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 17:44:25,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-10 17:44:25,361 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2022-01-10 17:44:25,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:25,714 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2022-01-10 17:44:25,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 17:44:25,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 [2022-01-10 17:44:25,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:25,715 INFO L225 Difference]: With dead ends: 57 [2022-01-10 17:44:25,715 INFO L226 Difference]: Without dead ends: 35 [2022-01-10 17:44:25,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-10 17:44:25,716 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 19 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:25,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 119 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 17:44:25,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-01-10 17:44:25,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-01-10 17:44:25,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.1875) internal successors, (38), 34 states have internal predecessors, (38), 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) [2022-01-10 17:44:25,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-01-10 17:44:25,720 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2022-01-10 17:44:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:25,720 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-01-10 17:44:25,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2022-01-10 17:44:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-01-10 17:44:25,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 17:44:25,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:25,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:44:25,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 17:44:25,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 17:44:25,931 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:25,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:25,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2055184279, now seen corresponding path program 1 times [2022-01-10 17:44:25,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:25,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155747263] [2022-01-10 17:44:25,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:25,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:26,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:26,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155747263] [2022-01-10 17:44:26,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155747263] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 17:44:26,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577665399] [2022-01-10 17:44:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:26,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 17:44:26,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:44:26,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 17:44:26,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 17:44:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:26,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 33 conjunts are in the unsatisfiable core [2022-01-10 17:44:26,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 17:44:26,461 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-10 17:44:26,462 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-01-10 17:44:26,476 INFO L387 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 15 treesize of output 11 [2022-01-10 17:44:26,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:26,526 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-01-10 17:44:26,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:26,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 17:44:26,535 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-01-10 17:44:26,540 INFO L387 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-01-10 17:44:26,547 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2022-01-10 17:44:26,557 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-01-10 17:44:26,567 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 17:44:26,568 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2022-01-10 17:44:26,603 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-10 17:44:26,704 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-10 17:44:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:26,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 17:44:26,781 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_676 (Array Int Int))) (= (select (select (store |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt| v_ArrVal_676) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.baseInt|) (+ 16 (* (- 18446744073709551616) (div (+ 16 |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.offsetInt|) 18446744073709551616)) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.offsetInt|)) ~unnamed1~0~BLACKInt)) is different from false [2022-01-10 17:44:26,801 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:26,802 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-01-10 17:44:26,805 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 81 [2022-01-10 17:44:26,810 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-01-10 17:44:27,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 17:44:27,096 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-10 17:44:27,096 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 1 [2022-01-10 17:44:27,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:27,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577665399] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 17:44:27,098 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 17:44:27,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-01-10 17:44:27,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276014508] [2022-01-10 17:44:27,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 17:44:27,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-10 17:44:27,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:27,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-10 17:44:27,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=121, Unknown=1, NotChecked=22, Total=182 [2022-01-10 17:44:27,100 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:44:27,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:27,774 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2022-01-10 17:44:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 17:44:27,775 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-10 17:44:27,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:27,775 INFO L225 Difference]: With dead ends: 79 [2022-01-10 17:44:27,776 INFO L226 Difference]: Without dead ends: 77 [2022-01-10 17:44:27,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=281, Unknown=1, NotChecked=36, Total=420 [2022-01-10 17:44:27,776 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 91 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:27,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 199 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 166 Invalid, 0 Unknown, 77 Unchecked, 0.5s Time] [2022-01-10 17:44:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-01-10 17:44:27,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 60. [2022-01-10 17:44:27,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 59 states have internal predecessors, (67), 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) [2022-01-10 17:44:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2022-01-10 17:44:27,781 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 19 [2022-01-10 17:44:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:27,781 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2022-01-10 17:44:27,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:44:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2022-01-10 17:44:27,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 17:44:27,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:27,782 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:44:27,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 17:44:27,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-01-10 17:44:27,991 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:27,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:27,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1449360305, now seen corresponding path program 1 times [2022-01-10 17:44:27,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:27,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097271924] [2022-01-10 17:44:27,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:27,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:28,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:28,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:28,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097271924] [2022-01-10 17:44:28,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097271924] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 17:44:28,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119570018] [2022-01-10 17:44:28,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:28,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 17:44:28,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:44:28,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 17:44:28,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 17:44:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:28,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 57 conjunts are in the unsatisfiable core [2022-01-10 17:44:28,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 17:44:28,938 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-10 17:44:28,939 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-01-10 17:44:28,992 INFO L387 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2022-01-10 17:44:29,000 INFO L387 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 35 [2022-01-10 17:44:29,020 INFO L353 Elim1Store]: treesize reduction 50, result has 9.1 percent of original size [2022-01-10 17:44:29,021 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 70 [2022-01-10 17:44:29,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:29,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:29,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:29,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 17:44:29,032 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2022-01-10 17:44:29,037 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-01-10 17:44:29,066 INFO L353 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-01-10 17:44:29,066 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-01-10 17:44:29,124 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-10 17:44:29,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53 [2022-01-10 17:44:29,129 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 45 [2022-01-10 17:44:29,138 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-01-10 17:44:29,394 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-01-10 17:44:29,400 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2022-01-10 17:44:29,425 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-10 17:44:29,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:29,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 17:44:29,805 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 141 [2022-01-10 17:44:29,919 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_878 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt| v_ArrVal_878) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.offsetInt|))) (or (and (or (not (<= ~unnamed1~0~BLACKInt ~unnamed1~0~REDInt)) (forall ((v_ArrVal_875 (Array Int Int))) (not (= |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt| (select (select (store |c_#memory_$Pointer$.baseInt| |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt| v_ArrVal_875) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.offsetInt|)))) (< ~unnamed1~0~BLACKInt 0)) (or (< ~unnamed1~0~REDInt 0) (and (= (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.offsetInt| 16) 18446744073709551616) (mod (+ 16 .cse0) 18446744073709551616)) (forall ((v_ArrVal_875 (Array Int Int))) (= |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt| (select (select (store |c_#memory_$Pointer$.baseInt| |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt| v_ArrVal_875) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.offsetInt|)))))) (not (<= 0 .cse0))))) is different from false [2022-01-10 17:44:29,954 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:29,955 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 209 [2022-01-10 17:44:29,963 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:29,964 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 153 [2022-01-10 17:44:29,979 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:29,980 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 568 treesize of output 483 [2022-01-10 17:44:30,000 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:30,001 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 948 treesize of output 895 [2022-01-10 17:44:30,018 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 895 treesize of output 877 [2022-01-10 17:44:30,033 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 877 treesize of output 809 [2022-01-10 17:44:30,046 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 809 treesize of output 797 [2022-01-10 17:44:30,060 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 797 treesize of output 773 [2022-01-10 17:44:30,073 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 773 treesize of output 763 [2022-01-10 17:44:30,104 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 580 treesize of output 572 [2022-01-10 17:44:30,119 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 572 treesize of output 560 [2022-01-10 17:44:30,859 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-01-10 17:44:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:30,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119570018] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 17:44:30,892 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 17:44:30,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 24 [2022-01-10 17:44:30,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651747681] [2022-01-10 17:44:30,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 17:44:30,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-10 17:44:30,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:44:30,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-10 17:44:30,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=440, Unknown=1, NotChecked=42, Total=552 [2022-01-10 17:44:30,894 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:44:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:44:32,070 INFO L93 Difference]: Finished difference Result 106 states and 117 transitions. [2022-01-10 17:44:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 17:44:32,070 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-10 17:44:32,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:44:32,071 INFO L225 Difference]: With dead ends: 106 [2022-01-10 17:44:32,071 INFO L226 Difference]: Without dead ends: 94 [2022-01-10 17:44:32,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=177, Invalid=818, Unknown=1, NotChecked=60, Total=1056 [2022-01-10 17:44:32,072 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 193 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 17:44:32,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 413 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 362 Invalid, 0 Unknown, 89 Unchecked, 0.8s Time] [2022-01-10 17:44:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-01-10 17:44:32,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 69. [2022-01-10 17:44:32,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 68 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:44:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2022-01-10 17:44:32,077 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 26 [2022-01-10 17:44:32,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:44:32,077 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2022-01-10 17:44:32,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:44:32,078 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2022-01-10 17:44:32,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 17:44:32,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:44:32,078 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:44:32,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 17:44:32,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 17:44:32,279 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:44:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:44:32,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1600842510, now seen corresponding path program 1 times [2022-01-10 17:44:32,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:44:32,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494926290] [2022-01-10 17:44:32,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:32,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:44:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:32,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:32,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:44:32,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494926290] [2022-01-10 17:44:32,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494926290] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 17:44:32,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673362322] [2022-01-10 17:44:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:44:32,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 17:44:32,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:44:32,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 17:44:32,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 17:44:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:44:33,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 86 conjunts are in the unsatisfiable core [2022-01-10 17:44:33,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 17:44:33,104 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-10 17:44:33,105 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-01-10 17:44:33,164 INFO L387 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2022-01-10 17:44:33,171 INFO L387 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2022-01-10 17:44:33,189 INFO L353 Elim1Store]: treesize reduction 50, result has 9.1 percent of original size [2022-01-10 17:44:33,189 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 85 [2022-01-10 17:44:33,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:33,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:33,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:33,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 17:44:33,203 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2022-01-10 17:44:33,209 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-01-10 17:44:33,226 INFO L353 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2022-01-10 17:44:33,227 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 32 [2022-01-10 17:44:33,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:33,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:33,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:33,322 INFO L353 Elim1Store]: treesize reduction 59, result has 25.3 percent of original size [2022-01-10 17:44:33,322 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 82 [2022-01-10 17:44:33,328 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 51 [2022-01-10 17:44:33,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:44:33,375 INFO L353 Elim1Store]: treesize reduction 115, result has 8.7 percent of original size [2022-01-10 17:44:33,375 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 92 [2022-01-10 17:44:33,382 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2022-01-10 17:44:33,402 INFO L353 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size [2022-01-10 17:44:33,403 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 49 [2022-01-10 17:44:33,410 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 15 [2022-01-10 17:44:33,800 INFO L353 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-01-10 17:44:33,800 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 53 [2022-01-10 17:44:33,853 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 17:44:33,854 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 23 [2022-01-10 17:44:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:44:33,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 17:44:34,077 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:34,078 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 125 [2022-01-10 17:44:34,085 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:34,085 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 107 [2022-01-10 17:44:34,757 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1192 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_1190 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (v_ArrVal_1179 (Array Int Int)) (v_ArrVal_1196 (Array Int Int)) (v_ArrVal_1183 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.baseInt| |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt| v_arrayElimArr_13)) (.cse4 (select v_arrayElimArr_13 |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.offsetInt|))) (let ((.cse1 (select |c_#validInt| .cse4)) (.cse0 (select (select (store .cse3 .cse4 v_ArrVal_1183) |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.offsetInt|))) (or (and (= |c_ULTIMATE.start_ULTIMATE.start_main_~null~0#1.baseInt| .cse0) (forall ((v_ArrVal_1180 (Array Int Int))) (= |c_ULTIMATE.start_ULTIMATE.start_main_~null~0#1.offsetInt| (select (select (store (store |c_#memory_$Pointer$.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt| v_arrayElimArr_12) (select v_arrayElimArr_13 |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.offsetInt|) v_ArrVal_1180) |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.offsetInt|)))) (not (<= 0 .cse1)) (not (<= .cse1 0)) (not (= (select v_arrayElimArr_12 |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.offsetInt|) 0)) (not (= (select (let ((.cse2 (store (store .cse3 .cse4 v_ArrVal_1196) .cse0 v_ArrVal_1190))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.offsetInt|))) (select (select (store (store (store |c_#memory_$Pointer$.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_main_~end~0#1.baseInt| v_arrayElimArr_12) .cse4 v_ArrVal_1179) .cse0 v_ArrVal_1192) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.offsetInt|)) |c_ULTIMATE.start_ULTIMATE.start_main_~null~0#1.baseInt|)))))) is different from false [2022-01-10 17:44:34,784 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:34,784 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 668 treesize of output 532 [2022-01-10 17:44:34,790 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:34,791 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 532 treesize of output 388 [2022-01-10 17:44:38,037 INFO L353 Elim1Store]: treesize reduction 4450, result has 32.7 percent of original size [2022-01-10 17:44:38,053 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 23 new quantified variables, introduced 190 case distinctions, treesize of input 4097361 treesize of output 3882548 [2022-01-10 17:44:45,868 WARN L228 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 2479 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-01-10 17:44:46,398 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:44:46,408 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115853803 treesize of output 107209158