/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_NONE.epf -i ../../../trunk/examples/svcomp/array-examples/standard_init2_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 21:07:34,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 21:07:34,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 21:07:34,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 21:07:34,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 21:07:34,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 21:07:34,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 21:07:34,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 21:07:34,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 21:07:34,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 21:07:34,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 21:07:34,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 21:07:34,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 21:07:34,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 21:07:34,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 21:07:34,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 21:07:34,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 21:07:34,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 21:07:34,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 21:07:34,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 21:07:34,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 21:07:34,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 21:07:34,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 21:07:34,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 21:07:34,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 21:07:34,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 21:07:34,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 21:07:34,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 21:07:34,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 21:07:34,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 21:07:34,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 21:07:34,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 21:07:34,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 21:07:34,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 21:07:34,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 21:07:34,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 21:07:34,768 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 21:07:34,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 21:07:34,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 21:07:34,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 21:07:34,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 21:07:34,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 21:07:34,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 21:07:34,792 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 21:07:34,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 21:07:34,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 21:07:34,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 21:07:34,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 21:07:34,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 21:07:34,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 21:07:34,794 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 21:07:34,794 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 21:07:34,794 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 21:07:34,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 21:07:34,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 21:07:34,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 21:07:34,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 21:07:34,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 21:07:34,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:07:34,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 21:07:34,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 21:07:34,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 21:07:34,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 21:07:34,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 21:07:34,796 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 21:07:34,796 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 21:07:34,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 21:07:34,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 21:07:34,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 21:07:34,796 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 21:07:34,797 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 21:07:34,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 21:07:35,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 21:07:35,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 21:07:35,009 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 21:07:35,010 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 21:07:35,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_init2_ground-2.i [2022-01-10 21:07:35,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05158c84f/55050d206c9e44fc94c090024383d57c/FLAG70c77f47f [2022-01-10 21:07:35,568 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 21:07:35,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init2_ground-2.i [2022-01-10 21:07:35,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05158c84f/55050d206c9e44fc94c090024383d57c/FLAG70c77f47f [2022-01-10 21:07:36,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05158c84f/55050d206c9e44fc94c090024383d57c [2022-01-10 21:07:36,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 21:07:36,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 21:07:36,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 21:07:36,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 21:07:36,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 21:07:36,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3348b19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36, skipping insertion in model container [2022-01-10 21:07:36,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 21:07:36,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 21:07:36,276 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init2_ground-2.i[816,829] [2022-01-10 21:07:36,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:07:36,301 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 21:07:36,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init2_ground-2.i[816,829] [2022-01-10 21:07:36,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:07:36,336 INFO L208 MainTranslator]: Completed translation [2022-01-10 21:07:36,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36 WrapperNode [2022-01-10 21:07:36,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 21:07:36,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 21:07:36,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 21:07:36,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 21:07:36,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,383 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2022-01-10 21:07:36,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 21:07:36,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 21:07:36,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 21:07:36,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 21:07:36,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 21:07:36,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 21:07:36,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 21:07:36,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 21:07:36,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:07:36,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:07:36,500 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 21:07:36,540 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 21:07:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 21:07:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 21:07:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 21:07:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 21:07:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 21:07:36,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 21:07:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 21:07:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 21:07:36,617 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 21:07:36,619 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 21:07:36,773 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 21:07:36,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 21:07:36,778 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 21:07:36,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:07:36 BoogieIcfgContainer [2022-01-10 21:07:36,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 21:07:36,780 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 21:07:36,780 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 21:07:36,783 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 21:07:36,785 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:07:36" (1/1) ... [2022-01-10 21:07:36,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:07:36 BasicIcfg [2022-01-10 21:07:36,875 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 21:07:36,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 21:07:36,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 21:07:36,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 21:07:36,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:07:36" (1/4) ... [2022-01-10 21:07:36,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b23cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:07:36, skipping insertion in model container [2022-01-10 21:07:36,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:07:36" (2/4) ... [2022-01-10 21:07:36,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b23cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:07:36, skipping insertion in model container [2022-01-10 21:07:36,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:07:36" (3/4) ... [2022-01-10 21:07:36,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b23cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:07:36, skipping insertion in model container [2022-01-10 21:07:36,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:07:36" (4/4) ... [2022-01-10 21:07:36,879 INFO L111 eAbstractionObserver]: Analyzing ICFG standard_init2_ground-2.iTransformedIcfg [2022-01-10 21:07:36,882 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 21:07:36,883 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 21:07:36,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 21:07:36,919 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 21:07:36,919 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 21:07:36,932 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) [2022-01-10 21:07:36,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 21:07:36,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:07:36,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:07:36,936 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:07:36,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:07:36,940 INFO L85 PathProgramCache]: Analyzing trace with hash -332527873, now seen corresponding path program 1 times [2022-01-10 21:07:36,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:07:36,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184864072] [2022-01-10 21:07:36,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:07:36,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:07:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:07:37,051 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 21:07:37,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:07:37,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184864072] [2022-01-10 21:07:37,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184864072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:07:37,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:07:37,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 21:07:37,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260254224] [2022-01-10 21:07:37,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:07:37,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 21:07:37,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:07:37,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 21:07:37,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 21:07:37,073 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 4.5) internal successors, (9), 2 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 21:07:37,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:07:37,081 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2022-01-10 21:07:37,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 21:07:37,082 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 21:07:37,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:07:37,086 INFO L225 Difference]: With dead ends: 29 [2022-01-10 21:07:37,087 INFO L226 Difference]: Without dead ends: 12 [2022-01-10 21:07:37,090 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 21:07:37,094 INFO L933 BasicCegarLoop]: 18 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, 18 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 21:07:37,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:07:37,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-01-10 21:07:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-01-10 21:07:37,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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 21:07:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-01-10 21:07:37,117 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2022-01-10 21:07:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:07:37,118 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-01-10 21:07:37,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 21:07:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-01-10 21:07:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 21:07:37,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:07:37,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:07:37,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 21:07:37,120 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:07:37,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:07:37,123 INFO L85 PathProgramCache]: Analyzing trace with hash 555899329, now seen corresponding path program 1 times [2022-01-10 21:07:37,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:07:37,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565689198] [2022-01-10 21:07:37,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:07:37,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:07:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:07:37,236 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 21:07:37,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:07:37,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565689198] [2022-01-10 21:07:37,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565689198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:07:37,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:07:37,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:07:37,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611762728] [2022-01-10 21:07:37,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:07:37,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:07:37,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:07:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:07:37,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:07:37,239 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 21:07:37,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:07:37,257 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2022-01-10 21:07:37,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:07:37,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 21:07:37,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:07:37,258 INFO L225 Difference]: With dead ends: 23 [2022-01-10 21:07:37,258 INFO L226 Difference]: Without dead ends: 14 [2022-01-10 21:07:37,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:07:37,263 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:07:37,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:07:37,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-01-10 21:07:37,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-01-10 21:07:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 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) [2022-01-10 21:07:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-01-10 21:07:37,270 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9 [2022-01-10 21:07:37,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:07:37,271 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-01-10 21:07:37,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 21:07:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-01-10 21:07:37,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 21:07:37,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:07:37,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:07:37,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 21:07:37,277 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:07:37,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:07:37,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1163203007, now seen corresponding path program 1 times [2022-01-10 21:07:37,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:07:37,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793886825] [2022-01-10 21:07:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:07:37,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:07:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:07:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 21:07:37,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:07:37,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793886825] [2022-01-10 21:07:37,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793886825] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 21:07:37,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017989169] [2022-01-10 21:07:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:07:37,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 21:07:37,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:07:37,405 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 21:07:37,406 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 21:07:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:07:37,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 21:07:37,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 21:07:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:07:37,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 21:07:37,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 21:07:37,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017989169] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 21:07:37,668 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 21:07:37,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-01-10 21:07:37,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116624253] [2022-01-10 21:07:37,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 21:07:37,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:07:37,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:07:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:07:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:07:37,669 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) [2022-01-10 21:07:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:07:37,770 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2022-01-10 21:07:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 21:07:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) Word has length 11 [2022-01-10 21:07:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:07:37,771 INFO L225 Difference]: With dead ends: 30 [2022-01-10 21:07:37,771 INFO L226 Difference]: Without dead ends: 20 [2022-01-10 21:07:37,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:07:37,772 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:07:37,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:07:37,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-10 21:07:37,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-10 21:07:37,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 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) [2022-01-10 21:07:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-01-10 21:07:37,776 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2022-01-10 21:07:37,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:07:37,776 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-01-10 21:07:37,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) [2022-01-10 21:07:37,776 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-01-10 21:07:37,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 21:07:37,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:07:37,776 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:07:37,793 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 21:07:37,993 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 [2022-01-10 21:07:37,993 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:07:37,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:07:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1863533119, now seen corresponding path program 2 times [2022-01-10 21:07:37,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:07:37,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052487253] [2022-01-10 21:07:37,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:07:37,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:07:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:07:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 21:07:38,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:07:38,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052487253] [2022-01-10 21:07:38,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052487253] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 21:07:38,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323270180] [2022-01-10 21:07:38,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 21:07:38,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 21:07:38,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:07:38,127 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 21:07:38,128 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 21:07:38,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 21:07:38,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 21:07:38,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-10 21:07:38,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 21:07:38,359 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 13 treesize of output 9 [2022-01-10 21:07:38,386 INFO L353 Elim1Store]: treesize reduction 55, result has 14.1 percent of original size [2022-01-10 21:07:38,387 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 37 treesize of output 36 [2022-01-10 21:07:38,421 INFO L353 Elim1Store]: treesize reduction 55, result has 14.1 percent of original size [2022-01-10 21:07:38,421 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 37 treesize of output 36 [2022-01-10 21:07:38,456 INFO L353 Elim1Store]: treesize reduction 55, result has 14.1 percent of original size [2022-01-10 21:07:38,456 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 37 treesize of output 36 [2022-01-10 21:07:38,519 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-10 21:07:38,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 21:07:39,907 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 43) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 43)) is different from false [2022-01-10 21:07:41,920 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 43) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| (mod (+ (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| 2147483648) 2)) (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| 4)) 18446744073709551616)) 18446744073709551616) 43) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 43)) is different from false [2022-01-10 21:07:43,958 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13| Int)) (= (select (store (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 43) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| (mod (+ (* (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13| 2147483648) 2) 18446744056529682432) (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13| 4)) 18446744073709551616)) 18446744073709551616) 43) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| (mod (+ (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| 2147483648) 2)) (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| 4)) 18446744073709551616)) 18446744073709551616) 43) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 43)) is different from false [2022-01-10 21:07:44,025 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 85 treesize of output 83 [2022-01-10 21:07:44,029 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 187 treesize of output 183 [2022-01-10 21:07:45,343 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 9 not checked. [2022-01-10 21:07:45,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323270180] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 21:07:45,344 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 21:07:45,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 18 [2022-01-10 21:07:45,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373412369] [2022-01-10 21:07:45,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 21:07:45,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-10 21:07:45,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:07:45,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-10 21:07:45,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=174, Unknown=3, NotChecked=84, Total=306 [2022-01-10 21:07:45,345 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 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 21:07:47,506 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 43) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| (+ (* 4294967296 (div |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648)) 4)) (= |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0) (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13| Int)) (= (select (store (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 43) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| (mod (+ (* (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13| 2147483648) 2) 18446744056529682432) (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13| 4)) 18446744073709551616)) 18446744073709551616) 43) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| (mod (+ (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| 2147483648) 2)) (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| 4)) 18446744073709551616)) 18446744073709551616) 43) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 43)) (<= 1 (+ (* (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 1) 4294967296) 4294967296) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|))) is different from false [2022-01-10 21:07:49,510 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 43) (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 43) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| (mod (+ (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| 2147483648) 2)) (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_11| 4)) 18446744073709551616)) 18446744073709551616) 43) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 43)) (= |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0)) is different from false [2022-01-10 21:07:50,604 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 43) (= |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0) (forall ((|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 43) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 43))) is different from false [2022-01-10 21:07:50,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:07:50,721 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-01-10 21:07:50,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 21:07:50,722 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 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 [2022-01-10 21:07:50,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:07:50,722 INFO L225 Difference]: With dead ends: 38 [2022-01-10 21:07:50,722 INFO L226 Difference]: Without dead ends: 25 [2022-01-10 21:07:50,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=89, Invalid=349, Unknown=6, NotChecked=258, Total=702 [2022-01-10 21:07:50,723 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 18 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:07:50,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 53 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 98 Invalid, 0 Unknown, 62 Unchecked, 0.2s Time] [2022-01-10 21:07:50,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-10 21:07:50,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-01-10 21:07:50,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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) [2022-01-10 21:07:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-01-10 21:07:50,728 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 17 [2022-01-10 21:07:50,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:07:50,728 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-01-10 21:07:50,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 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 21:07:50,728 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-01-10 21:07:50,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 21:07:50,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:07:50,729 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:07:50,733 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 21:07:50,929 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 [2022-01-10 21:07:50,929 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:07:50,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:07:50,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1555681404, now seen corresponding path program 1 times [2022-01-10 21:07:50,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:07:50,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176669087] [2022-01-10 21:07:50,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:07:50,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:07:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:07:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-10 21:07:51,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:07:51,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176669087] [2022-01-10 21:07:51,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176669087] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 21:07:51,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388627051] [2022-01-10 21:07:51,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:07:51,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 21:07:51,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:07:51,120 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 21:07:51,121 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 21:07:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:07:51,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 22 conjunts are in the unsatisfiable core [2022-01-10 21:07:51,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 21:08:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 21:08:09,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 21:08:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-10 21:08:11,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388627051] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 21:08:11,785 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 21:08:11,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 7] total 18 [2022-01-10 21:08:11,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697981309] [2022-01-10 21:08:11,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 21:08:11,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-10 21:08:11,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:08:11,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-10 21:08:11,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=206, Unknown=5, NotChecked=0, Total=306 [2022-01-10 21:08:11,787 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 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 21:08:16,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:08:16,973 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-01-10 21:08:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 21:08:16,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 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 22 [2022-01-10 21:08:16,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:08:16,975 INFO L225 Difference]: With dead ends: 37 [2022-01-10 21:08:16,975 INFO L226 Difference]: Without dead ends: 28 [2022-01-10 21:08:16,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=133, Invalid=281, Unknown=6, NotChecked=0, Total=420 [2022-01-10 21:08:16,976 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 21:08:16,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 59 Invalid, 0 Unknown, 14 Unchecked, 0.4s Time] [2022-01-10 21:08:16,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-01-10 21:08:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-01-10 21:08:16,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 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 21:08:16,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-01-10 21:08:16,986 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 22 [2022-01-10 21:08:16,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:08:16,986 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-01-10 21:08:16,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 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 21:08:16,986 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-01-10 21:08:16,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 21:08:16,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:08:16,987 INFO L514 BasicCegarLoop]: trace histogram [9, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:08:17,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-10 21:08:17,187 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 [2022-01-10 21:08:17,188 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:08:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:08:17,189 INFO L85 PathProgramCache]: Analyzing trace with hash 341277692, now seen corresponding path program 2 times [2022-01-10 21:08:17,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:08:17,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712626649] [2022-01-10 21:08:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:08:17,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:08:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:08:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-01-10 21:08:17,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:08:17,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712626649] [2022-01-10 21:08:17,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712626649] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 21:08:17,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866257791] [2022-01-10 21:08:17,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 21:08:17,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 21:08:17,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:08:17,389 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 21:08:17,416 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 21:08:17,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 21:08:17,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 21:08:17,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-10 21:08:17,506 INFO L286 TraceCheckSpWp]: Computing forward predicates...