/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_SUM.epf -i ../../../trunk/examples/svcomp/heap-data/shared_mem2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:29:02,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:29:02,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:29:02,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:29:02,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:29:02,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:29:02,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:29:02,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:29:02,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:29:02,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:29:02,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:29:02,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:29:02,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:29:02,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:29:02,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:29:02,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:29:02,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:29:02,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:29:02,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:29:02,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:29:02,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:29:02,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:29:02,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:29:02,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:29:02,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 05:29:02,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:29:02,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:29:02,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:29:02,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:29:02,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:29:02,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:29:02,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:29:02,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:29:02,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:29:02,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:29:02,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:29:02,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:29:02,826 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:29:02,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:29:02,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:29:02,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:29:02,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:29:02,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:29:02,828 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:29:02,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:29:02,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:29:02,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:29:02,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:29:02,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:29:02,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:29:02,830 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:29:02,830 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:29:02,830 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:29:02,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:29:02,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:29:02,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:29:02,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:29:02,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:29:02,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:29:02,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:29:02,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:29:02,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:29:02,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:29:02,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:29:02,833 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:29:02,833 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:29:02,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:29:02,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:29:02,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:29:02,834 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:29:02,834 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:29:03,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:29:03,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:29:03,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:29:03,105 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:29:03,107 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:29:03,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/shared_mem2.i [2022-01-11 05:29:03,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93deed6d7/d0f5e58997134aadb19d05fcac6de44f/FLAG113e2359b [2022-01-11 05:29:03,607 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:29:03,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem2.i [2022-01-11 05:29:03,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93deed6d7/d0f5e58997134aadb19d05fcac6de44f/FLAG113e2359b [2022-01-11 05:29:03,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93deed6d7/d0f5e58997134aadb19d05fcac6de44f [2022-01-11 05:29:03,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:29:03,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:29:03,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:29:03,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:29:03,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:29:03,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:29:03" (1/1) ... [2022-01-11 05:29:03,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5107dca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:03, skipping insertion in model container [2022-01-11 05:29:03,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:29:03" (1/1) ... [2022-01-11 05:29:03,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:29:03,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:29:04,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem2.i[23827,23840] [2022-01-11 05:29:04,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:29:04,038 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:29:04,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem2.i[23827,23840] [2022-01-11 05:29:04,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:29:04,089 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:29:04,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04 WrapperNode [2022-01-11 05:29:04,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:29:04,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:29:04,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:29:04,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:29:04,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,148 INFO L137 Inliner]: procedures = 124, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2022-01-11 05:29:04,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:29:04,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:29:04,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:29:04,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:29:04,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:29:04,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:29:04,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:29:04,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:29:04,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:29:04,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:29:04,231 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) [2022-01-11 05:29:04,234 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 [2022-01-11 05:29:04,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 05:29:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-11 05:29:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:29:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-11 05:29:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-11 05:29:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 05:29:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:29:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:29:04,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:29:04,387 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:29:04,389 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:29:04,833 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:29:04,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:29:04,838 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 05:29:04,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:29:04 BoogieIcfgContainer [2022-01-11 05:29:04,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:29:04,840 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:29:04,840 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:29:04,841 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:29:04,843 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:29:04" (1/1) ... [2022-01-11 05:29:04,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:29:04 BasicIcfg [2022-01-11 05:29:04,902 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:29:04,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:29:04,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:29:04,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:29:04,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:29:03" (1/4) ... [2022-01-11 05:29:04,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139f8985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:29:04, skipping insertion in model container [2022-01-11 05:29:04,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:04" (2/4) ... [2022-01-11 05:29:04,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139f8985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:29:04, skipping insertion in model container [2022-01-11 05:29:04,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:29:04" (3/4) ... [2022-01-11 05:29:04,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139f8985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:29:04, skipping insertion in model container [2022-01-11 05:29:04,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:29:04" (4/4) ... [2022-01-11 05:29:04,908 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem2.iTransformedIcfg [2022-01-11 05:29:04,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:29:04,912 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 05:29:04,941 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:29:04,946 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 [2022-01-11 05:29:04,946 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 05:29:04,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 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) [2022-01-11 05:29:04,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-11 05:29:04,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:29:04,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:29:04,960 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:29:04,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:29:04,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1617181269, now seen corresponding path program 1 times [2022-01-11 05:29:04,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:29:04,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550039871] [2022-01-11 05:29:04,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:29:04,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:29:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:29:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:29:05,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:29:05,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550039871] [2022-01-11 05:29:05,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550039871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:29:05,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:29:05,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:29:05,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139227071] [2022-01-11 05:29:05,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:29:05,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:29:05,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:29:05,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:29:05,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:29:05,200 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-01-11 05:29:05,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:29:05,210 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2022-01-11 05:29:05,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:29:05,211 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-01-11 05:29:05,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:29:05,217 INFO L225 Difference]: With dead ends: 28 [2022-01-11 05:29:05,217 INFO L226 Difference]: Without dead ends: 13 [2022-01-11 05:29:05,220 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 [2022-01-11 05:29:05,224 INFO L933 BasicCegarLoop]: 19 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, 19 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 [2022-01-11 05:29:05,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:29:05,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-01-11 05:29:05,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-01-11 05:29:05,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:29:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-01-11 05:29:05,248 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2022-01-11 05:29:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:29:05,249 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-01-11 05:29:05,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-01-11 05:29:05,251 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-01-11 05:29:05,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 05:29:05,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:29:05,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:29:05,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:29:05,252 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:29:05,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:29:05,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1999525027, now seen corresponding path program 1 times [2022-01-11 05:29:05,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:29:05,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645073030] [2022-01-11 05:29:05,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:29:05,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:29:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:29:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:29:05,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:29:05,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645073030] [2022-01-11 05:29:05,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645073030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:29:05,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:29:05,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:29:05,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298310619] [2022-01-11 05:29:05,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:29:05,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:29:05,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:29:05,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:29:05,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:29:05,480 INFO L87 Difference]: Start difference. First operand 13 states and 16 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) [2022-01-11 05:29:05,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:29:05,598 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2022-01-11 05:29:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:29:05,599 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 [2022-01-11 05:29:05,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:29:05,599 INFO L225 Difference]: With dead ends: 24 [2022-01-11 05:29:05,599 INFO L226 Difference]: Without dead ends: 20 [2022-01-11 05:29:05,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:29:05,601 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:29:05,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:29:05,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-11 05:29:05,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-11 05:29:05,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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) [2022-01-11 05:29:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-01-11 05:29:05,607 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 9 [2022-01-11 05:29:05,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:29:05,607 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-01-11 05:29:05,607 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) [2022-01-11 05:29:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-01-11 05:29:05,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 05:29:05,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:29:05,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:29:05,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:29:05,608 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:29:05,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:29:05,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1334336123, now seen corresponding path program 1 times [2022-01-11 05:29:05,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:29:05,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431701791] [2022-01-11 05:29:05,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:29:05,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:29:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:29:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:29:05,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:29:05,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431701791] [2022-01-11 05:29:05,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431701791] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:29:05,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659709969] [2022-01-11 05:29:05,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:29:05,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:29:05,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:29:05,871 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) [2022-01-11 05:29:05,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 05:29:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:29:06,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-11 05:29:06,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:29:06,302 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 14 treesize of output 14 [2022-01-11 05:29:06,320 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-11 05:29:06,321 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-01-11 05:29:06,340 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 5 treesize of output 3 [2022-01-11 05:29:06,362 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-11 05:29:06,363 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 19 treesize of output 18 [2022-01-11 05:29:06,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:29:06,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:29:06,468 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 0 case distinctions, treesize of input 17 treesize of output 21 [2022-01-11 05:29:06,489 INFO L353 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-01-11 05:29:06,490 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 18 treesize of output 20 [2022-01-11 05:29:06,518 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 [2022-01-11 05:29:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:29:06,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 05:29:06,597 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.start_main_~n~0#1.baseInt_1| Int) (v_ArrVal_179 (Array Int Int))) (or (let ((.cse0 (select (select (store (store |c_#memory_intInt| |v_ULTIMATE.start_ULTIMATE.start_main_~n~0#1.baseInt_1| v_ArrVal_180) |c_ULTIMATE.start_ULTIMATE.start_main_~list~0#1.baseInt| v_ArrVal_179) |c_ULTIMATE.start_ULTIMATE.start_main_~m~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~m~0#1.offsetInt|))) (< (+ 100 (* 2 (mod .cse0 2147483648))) (+ .cse0 (* (mod 100 2147483648) 2)))) (not (<= (mod (select |c_#validInt| |v_ULTIMATE.start_ULTIMATE.start_main_~n~0#1.baseInt_1|) 2) 0)))) is different from false [2022-01-11 05:29:06,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-01-11 05:29:06,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659709969] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 05:29:06,649 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 05:29:06,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-01-11 05:29:06,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270446323] [2022-01-11 05:29:06,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 05:29:06,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-11 05:29:06,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:29:06,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-11 05:29:06,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=61, Unknown=1, NotChecked=16, Total=110 [2022-01-11 05:29:06,651 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2022-01-11 05:29:06,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:29:06,810 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-01-11 05:29:06,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:29:06,811 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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 11 [2022-01-11 05:29:06,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:29:06,812 INFO L225 Difference]: With dead ends: 28 [2022-01-11 05:29:06,812 INFO L226 Difference]: Without dead ends: 24 [2022-01-11 05:29:06,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=88, Unknown=1, NotChecked=20, Total=156 [2022-01-11 05:29:06,814 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:29:06,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 48 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 15 Unchecked, 0.1s Time] [2022-01-11 05:29:06,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-01-11 05:29:06,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2022-01-11 05:29:06,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 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) [2022-01-11 05:29:06,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-01-11 05:29:06,818 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2022-01-11 05:29:06,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:29:06,818 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-01-11 05:29:06,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2022-01-11 05:29:06,819 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-01-11 05:29:06,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-11 05:29:06,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:29:06,819 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:29:06,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 05:29:07,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:29:07,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:29:07,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:29:07,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1558034731, now seen corresponding path program 1 times [2022-01-11 05:29:07,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:29:07,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272516239] [2022-01-11 05:29:07,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:29:07,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:29:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:29:07,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:29:07,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:29:07,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272516239] [2022-01-11 05:29:07,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272516239] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:29:07,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281276902] [2022-01-11 05:29:07,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:29:07,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:29:07,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:29:07,421 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) [2022-01-11 05:29:07,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 05:29:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:29:07,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 34 conjunts are in the unsatisfiable core [2022-01-11 05:29:07,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:29:07,568 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 14 treesize of output 14 [2022-01-11 05:29:07,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:29:07,577 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 14 treesize of output 16 [2022-01-11 05:29:07,581 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 10 treesize of output 8 [2022-01-11 05:29:07,655 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 133 treesize of output 93 [2022-01-11 05:29:07,662 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 93 treesize of output 61 [2022-01-11 05:29:07,744 INFO L353 Elim1Store]: treesize reduction 52, result has 51.4 percent of original size [2022-01-11 05:29:07,744 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 90 [2022-01-11 05:29:26,016 WARN L228 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-11 05:29:26,067 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-11 05:29:26,067 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 115 [2022-01-11 05:29:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:29:26,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 05:29:26,661 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 275 treesize of output 187 [2022-01-11 05:29:26,667 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 187 treesize of output 123 [2022-01-11 05:29:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:29:33,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281276902] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 05:29:33,063 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 05:29:33,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 17 [2022-01-11 05:29:33,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124066385] [2022-01-11 05:29:33,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 05:29:33,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-11 05:29:33,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:29:33,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-11 05:29:33,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=194, Unknown=4, NotChecked=0, Total=272 [2022-01-11 05:29:33,066 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 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) [2022-01-11 05:29:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:29:33,634 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2022-01-11 05:29:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-11 05:29:33,634 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 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 13 [2022-01-11 05:29:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:29:33,635 INFO L225 Difference]: With dead ends: 34 [2022-01-11 05:29:33,635 INFO L226 Difference]: Without dead ends: 29 [2022-01-11 05:29:33,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=82, Invalid=220, Unknown=4, NotChecked=0, Total=306 [2022-01-11 05:29:33,636 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:29:33,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 57 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 29 Unchecked, 0.5s Time] [2022-01-11 05:29:33,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-01-11 05:29:33,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2022-01-11 05:29:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:29:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2022-01-11 05:29:33,641 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 13 [2022-01-11 05:29:33,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:29:33,641 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-01-11 05:29:33,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 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) [2022-01-11 05:29:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-01-11 05:29:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 05:29:33,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:29:33,642 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:29:33,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-11 05:29:33,851 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,SelfDestructingSolverStorable3 [2022-01-11 05:29:33,852 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:29:33,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:29:33,852 INFO L85 PathProgramCache]: Analyzing trace with hash -651255410, now seen corresponding path program 1 times [2022-01-11 05:29:33,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:29:33,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515823519] [2022-01-11 05:29:33,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:29:33,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:29:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:29:34,048 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-11 05:29:34,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:29:34,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515823519] [2022-01-11 05:29:34,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515823519] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:29:34,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474361667] [2022-01-11 05:29:34,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:29:34,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:29:34,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:29:34,050 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) [2022-01-11 05:29:34,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 05:29:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:29:34,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-11 05:29:34,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:29:34,240 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 31 treesize of output 19 [2022-01-11 05:29:34,266 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-11 05:29:34,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 05:29:34,325 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-11 05:29:34,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474361667] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 05:29:34,326 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 05:29:34,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-01-11 05:29:34,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243143131] [2022-01-11 05:29:34,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 05:29:34,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:29:34,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:29:34,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:29:34,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:29:34,327 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2022-01-11 05:29:34,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:29:34,513 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-01-11 05:29:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:29:34,513 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-11 05:29:34,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:29:34,514 INFO L225 Difference]: With dead ends: 25 [2022-01-11 05:29:34,514 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 05:29:34,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:29:34,515 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:29:34,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 48 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:29:34,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 05:29:34,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 05:29:34,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:29:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 05:29:34,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-01-11 05:29:34,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:29:34,516 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 05:29:34,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2022-01-11 05:29:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 05:29:34,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 05:29:34,519 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 05:29:34,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-11 05:29:34,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:29:34,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 05:29:34,851 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 05:29:34,851 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 05:29:34,851 INFO L854 garLoopResultBuilder]: At program point L586-2(lines 584 593) the Hoare annotation is: (and (= (select |#validInt| |ULTIMATE.start_ULTIMATE.start_main_~list~0#1.baseInt|) 1) (= (select (select |#memory_intInt| |ULTIMATE.start_ULTIMATE.start_main_~m~0#1.baseInt|) |ULTIMATE.start_ULTIMATE.start_main_~m~0#1.offsetInt|) 0) (not (let ((.cse0 (+ |ULTIMATE.start_ULTIMATE.start_main_~list~0#1.offsetInt| 12))) (= (+ |ULTIMATE.start_ULTIMATE.start_main_~m~0#1.offsetInt| (* (div .cse0 18446744073709551616) 18446744073709551616)) .cse0))) (= (select |#validInt| |ULTIMATE.start_ULTIMATE.start_main_~m~0#1.baseInt|) 1) (not (= |ULTIMATE.start_ULTIMATE.start_main_~m~0#1.baseInt| |ULTIMATE.start_ULTIMATE.start_main_~list~0#1.baseInt|)) (not (= |ULTIMATE.start_ULTIMATE.start_main_~m~0#1.baseInt| |ULTIMATE.start_ULTIMATE.start_main_~head~0#1.baseInt|))) [2022-01-11 05:29:34,851 INFO L858 garLoopResultBuilder]: For program point L584-2(lines 584 593) no Hoare annotation was computed. [2022-01-11 05:29:34,851 INFO L858 garLoopResultBuilder]: For program point L586(lines 586 592) no Hoare annotation was computed. [2022-01-11 05:29:34,852 INFO L854 garLoopResultBuilder]: At program point L595-3(lines 595 599) the Hoare annotation is: (let ((.cse0 (select (select |#memory_intInt| |ULTIMATE.start_ULTIMATE.start_main_~m~0#1.baseInt|) |ULTIMATE.start_ULTIMATE.start_main_~m~0#1.offsetInt|))) (or (<= (* 2147483648 (div (+ .cse0 4294967296) 4294967296)) .cse0) (<= .cse0 100))) [2022-01-11 05:29:34,852 INFO L858 garLoopResultBuilder]: For program point L595-4(lines 595 599) no Hoare annotation was computed. [2022-01-11 05:29:34,852 INFO L858 garLoopResultBuilder]: For program point L595-1(lines 595 599) no Hoare annotation was computed. [2022-01-11 05:29:34,852 INFO L858 garLoopResultBuilder]: For program point L600(lines 600 601) no Hoare annotation was computed. [2022-01-11 05:29:34,852 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 597) no Hoare annotation was computed. [2022-01-11 05:29:34,852 INFO L858 garLoopResultBuilder]: For program point L601(line 601) no Hoare annotation was computed. [2022-01-11 05:29:34,852 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 602) no Hoare annotation was computed. [2022-01-11 05:29:34,852 INFO L858 garLoopResultBuilder]: For program point L596-2(lines 596 597) no Hoare annotation was computed. [2022-01-11 05:29:34,852 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 601) no Hoare annotation was computed. [2022-01-11 05:29:34,852 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 05:29:34,853 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 05:29:34,855 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-11 05:29:34,856 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 05:29:34,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:29:34 BasicIcfg [2022-01-11 05:29:34,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 05:29:34,875 INFO L158 Benchmark]: Toolchain (without parser) took 31237.83ms. Allocated memory was 170.9MB in the beginning and 251.7MB in the end (delta: 80.7MB). Free memory was 121.4MB in the beginning and 124.4MB in the end (delta: -3.0MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2022-01-11 05:29:34,875 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:29:34,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.44ms. Allocated memory is still 170.9MB. Free memory was 121.4MB in the beginning and 141.5MB in the end (delta: -20.1MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2022-01-11 05:29:34,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.06ms. Allocated memory is still 170.9MB. Free memory was 141.5MB in the beginning and 139.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 05:29:34,876 INFO L158 Benchmark]: Boogie Preprocessor took 47.25ms. Allocated memory is still 170.9MB. Free memory was 139.4MB in the beginning and 137.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 05:29:34,876 INFO L158 Benchmark]: RCFGBuilder took 641.68ms. Allocated memory is still 170.9MB. Free memory was 137.8MB in the beginning and 122.6MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-11 05:29:34,876 INFO L158 Benchmark]: IcfgTransformer took 62.21ms. Allocated memory is still 170.9MB. Free memory was 122.6MB in the beginning and 118.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-11 05:29:34,877 INFO L158 Benchmark]: TraceAbstraction took 29971.11ms. Allocated memory was 170.9MB in the beginning and 251.7MB in the end (delta: 80.7MB). Free memory was 117.9MB in the beginning and 124.4MB in the end (delta: -6.5MB). Peak memory consumption was 75.3MB. Max. memory is 8.0GB. [2022-01-11 05:29:34,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 446.44ms. Allocated memory is still 170.9MB. Free memory was 121.4MB in the beginning and 141.5MB in the end (delta: -20.1MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.06ms. Allocated memory is still 170.9MB. Free memory was 141.5MB in the beginning and 139.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.25ms. Allocated memory is still 170.9MB. Free memory was 139.4MB in the beginning and 137.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 641.68ms. Allocated memory is still 170.9MB. Free memory was 137.8MB in the beginning and 122.6MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * IcfgTransformer took 62.21ms. Allocated memory is still 170.9MB. Free memory was 122.6MB in the beginning and 118.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * TraceAbstraction took 29971.11ms. Allocated memory was 170.9MB in the beginning and 251.7MB in the end (delta: 80.7MB). Free memory was 117.9MB in the beginning and 124.4MB in the end (delta: -6.5MB). Peak memory consumption was 75.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 601]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.9s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 206 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 44 IncrementalHoareTripleChecker+Unchecked, 146 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 60 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 69 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=2, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 65 HoareAnnotationTreeSize, 2 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 726 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 27.0s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 129 ConstructedInterpolants, 7 QuantifiedInterpolants, 2107 SizeOfPredicates, 23 NumberOfNonLiveVariables, 884 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 22/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: ~bvule33(~bvmul32(2147483648bv33, ~zero_extendFrom2To33(~bvadd16(~zero_extendFrom32To34(unknown-#memory_int-unknown[m][m]), 4294967296bv34)[33:32])), ~zero_extendFrom32To33(unknown-#memory_int-unknown[m][m])) || ~bvule32(unknown-#memory_int-unknown[m][m], 100bv32) - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((unknown-#memory_int-unknown[m][m] == 0bv32 && \valid[m] == 1bv1) && !(head == m)) && \valid[list] == 1bv1) && !(list == m)) && !(~bvadd16(~zero_extendFrom64To66(m), ~zero_extendFrom65To66(~bvadd16(~zero_extendFrom64To65(list), 12bv65)[64:64] ++ 0bv64)) == ~zero_extendFrom65To66(~bvadd16(~zero_extendFrom64To65(list), 12bv65))) RESULT: Ultimate proved your program to be correct! [2022-01-11 05:29:35,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...