/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/array-cav19/array_tripl_access_init_const.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 03:18:33,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 03:18:33,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 03:18:33,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 03:18:33,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 03:18:33,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 03:18:33,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 03:18:33,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 03:18:33,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 03:18:33,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 03:18:33,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 03:18:33,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 03:18:33,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 03:18:33,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 03:18:33,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 03:18:33,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 03:18:33,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 03:18:33,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 03:18:33,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 03:18:33,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 03:18:33,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 03:18:33,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 03:18:33,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 03:18:33,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 03:18:33,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 03:18:33,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 03:18:33,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 03:18:33,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 03:18:33,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 03:18:33,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-11 03:18:33,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 03:18:33,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 03:18:33,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 03:18:33,156 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 03:18:33,180 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 03:18:33,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 03:18:33,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 03:18:33,181 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 03:18:33,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 03:18:33,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 03:18:33,182 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 03:18:33,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 03:18:33,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 03:18:33,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 03:18:33,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 03:18:33,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 03:18:33,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 03:18:33,183 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 03:18:33,183 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 03:18:33,183 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 03:18:33,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 03:18:33,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 03:18:33,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 03:18:33,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 03:18:33,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 03:18:33,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:18:33,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 03:18:33,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 03:18:33,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 03:18:33,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 03:18:33,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 03:18:33,185 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 03:18:33,185 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 03:18:33,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 03:18:33,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 03:18:33,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 03:18:33,186 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 03:18:33,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 03:18:33,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 03:18:33,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 03:18:33,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 03:18:33,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 03:18:33,469 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 03:18:33,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-cav19/array_tripl_access_init_const.c [2022-01-11 03:18:33,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d028eb74b/cd08ad9339c145448fd8019588dfeefe/FLAGebbf7afc2 [2022-01-11 03:18:33,941 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 03:18:33,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-cav19/array_tripl_access_init_const.c [2022-01-11 03:18:33,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d028eb74b/cd08ad9339c145448fd8019588dfeefe/FLAGebbf7afc2 [2022-01-11 03:18:34,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d028eb74b/cd08ad9339c145448fd8019588dfeefe [2022-01-11 03:18:34,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 03:18:34,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 03:18:34,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 03:18:34,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 03:18:34,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 03:18:34,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cddfd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34, skipping insertion in model container [2022-01-11 03:18:34,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 03:18:34,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:18:34,504 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-cav19/array_tripl_access_init_const.c[420,433] [2022-01-11 03:18:34,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:18:34,523 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 03:18:34,533 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-cav19/array_tripl_access_init_const.c[420,433] [2022-01-11 03:18:34,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:18:34,550 INFO L208 MainTranslator]: Completed translation [2022-01-11 03:18:34,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34 WrapperNode [2022-01-11 03:18:34,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 03:18:34,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 03:18:34,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 03:18:34,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 03:18:34,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,579 INFO L137 Inliner]: procedures = 16, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2022-01-11 03:18:34,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 03:18:34,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 03:18:34,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 03:18:34,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 03:18:34,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 03:18:34,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 03:18:34,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 03:18:34,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 03:18:34,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:34,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:18:34,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:18:34,628 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 03:18:34,654 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 03:18:34,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 03:18:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 03:18:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 03:18:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 03:18:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 03:18:34,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 03:18:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 03:18:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 03:18:34,726 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 03:18:34,728 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 03:18:34,909 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 03:18:34,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 03:18:34,930 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 03:18:34,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:18:34 BoogieIcfgContainer [2022-01-11 03:18:34,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 03:18:34,932 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 03:18:34,932 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 03:18:34,944 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 03:18:34,946 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:18:34" (1/1) ... [2022-01-11 03:18:35,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:18:35 BasicIcfg [2022-01-11 03:18:35,055 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 03:18:35,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 03:18:35,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 03:18:35,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 03:18:35,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:18:34" (1/4) ... [2022-01-11 03:18:35,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583a9df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:18:35, skipping insertion in model container [2022-01-11 03:18:35,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:18:34" (2/4) ... [2022-01-11 03:18:35,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583a9df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:18:35, skipping insertion in model container [2022-01-11 03:18:35,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:18:34" (3/4) ... [2022-01-11 03:18:35,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583a9df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:18:35, skipping insertion in model container [2022-01-11 03:18:35,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:18:35" (4/4) ... [2022-01-11 03:18:35,062 INFO L111 eAbstractionObserver]: Analyzing ICFG array_tripl_access_init_const.cTransformedIcfg [2022-01-11 03:18:35,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 03:18:35,068 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 03:18:35,110 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 03:18:35,120 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 03:18:35,120 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 03:18:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:18:35,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 03:18:35,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:18:35,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:18:35,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:18:35,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:18:35,154 INFO L85 PathProgramCache]: Analyzing trace with hash -824394445, now seen corresponding path program 1 times [2022-01-11 03:18:35,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:18:35,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186941791] [2022-01-11 03:18:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:18:35,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:18:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:18:35,391 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 03:18:35,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:18:35,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186941791] [2022-01-11 03:18:35,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186941791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:18:35,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:18:35,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:18:35,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432732791] [2022-01-11 03:18:35,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:18:35,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 03:18:35,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:18:35,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 03:18:35,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 03:18:35,435 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:18:35,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:18:35,452 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-01-11 03:18:35,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 03:18:35,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-01-11 03:18:35,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:18:35,463 INFO L225 Difference]: With dead ends: 26 [2022-01-11 03:18:35,463 INFO L226 Difference]: Without dead ends: 11 [2022-01-11 03:18:35,466 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 03:18:35,472 INFO L933 BasicCegarLoop]: 16 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, 16 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 03:18:35,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:18:35,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-01-11 03:18:35,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-01-11 03:18:35,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:18:35,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-01-11 03:18:35,505 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2022-01-11 03:18:35,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:18:35,506 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-01-11 03:18:35,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:18:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-01-11 03:18:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 03:18:35,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:18:35,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:18:35,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 03:18:35,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:18:35,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:18:35,512 INFO L85 PathProgramCache]: Analyzing trace with hash -823470924, now seen corresponding path program 1 times [2022-01-11 03:18:35,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:18:35,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030643588] [2022-01-11 03:18:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:18:35,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:18:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:18:35,731 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 03:18:35,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:18:35,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030643588] [2022-01-11 03:18:35,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030643588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:18:35,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:18:35,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:18:35,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906375487] [2022-01-11 03:18:35,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:18:35,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:18:35,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:18:35,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:18:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:18:35,735 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:18:36,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:18:36,413 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-01-11 03:18:36,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:18:36,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-01-11 03:18:36,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:18:36,414 INFO L225 Difference]: With dead ends: 20 [2022-01-11 03:18:36,414 INFO L226 Difference]: Without dead ends: 13 [2022-01-11 03:18:36,414 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 [2022-01-11 03:18:36,416 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 03:18:36,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 03:18:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-01-11 03:18:36,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-01-11 03:18:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:18:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-01-11 03:18:36,420 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 7 [2022-01-11 03:18:36,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:18:36,421 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-01-11 03:18:36,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:18:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-01-11 03:18:36,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 03:18:36,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:18:36,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:18:36,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 03:18:36,422 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:18:36,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:18:36,423 INFO L85 PathProgramCache]: Analyzing trace with hash -171165582, now seen corresponding path program 1 times [2022-01-11 03:18:36,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:18:36,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185856739] [2022-01-11 03:18:36,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:18:36,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:18:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:18:36,573 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 03:18:36,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:18:36,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185856739] [2022-01-11 03:18:36,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185856739] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 03:18:36,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467173392] [2022-01-11 03:18:36,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:18:36,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:18:36,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:18:36,577 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 03:18:36,638 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 03:18:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:18:36,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-11 03:18:36,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 03:18:37,197 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 03:18:37,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 03:18:37,254 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 03:18:37,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467173392] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 03:18:37,255 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 03:18:37,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-01-11 03:18:37,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527903137] [2022-01-11 03:18:37,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 03:18:37,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 03:18:37,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:18:37,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 03:18:37,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-11 03:18:37,260 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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 03:18:38,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:18:38,404 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2022-01-11 03:18:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 03:18:38,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-01-11 03:18:38,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:18:38,405 INFO L225 Difference]: With dead ends: 25 [2022-01-11 03:18:38,405 INFO L226 Difference]: Without dead ends: 18 [2022-01-11 03:18:38,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-01-11 03:18:38,406 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-11 03:18:38,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-11 03:18:38,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-01-11 03:18:38,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-01-11 03:18:38,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:18:38,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-01-11 03:18:38,411 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2022-01-11 03:18:38,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:18:38,411 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-01-11 03:18:38,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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 03:18:38,412 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-01-11 03:18:38,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 03:18:38,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:18:38,412 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:18:38,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-11 03:18:38,613 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 03:18:38,613 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:18:38,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:18:38,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1002182316, now seen corresponding path program 2 times [2022-01-11 03:18:38,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:18:38,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115401814] [2022-01-11 03:18:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:18:38,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:18:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:18:39,006 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:18:39,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:18:39,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115401814] [2022-01-11 03:18:39,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115401814] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 03:18:39,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219480491] [2022-01-11 03:18:39,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-11 03:18:39,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:18:39,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:18:39,011 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 03:18:39,012 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 03:18:39,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-11 03:18:39,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-11 03:18:39,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-11 03:18:39,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 03:18:39,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:39,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:39,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:39,643 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2022-01-11 03:18:39,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:39,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:39,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:49,233 WARN L228 SmtUtils]: Spent 9.53s on a formula simplification. DAG size of input: 108 DAG size of output: 54 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-01-11 03:18:49,234 INFO L353 Elim1Store]: treesize reduction 1639, result has 5.9 percent of original size [2022-01-11 03:18:49,239 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 137 treesize of output 150 [2022-01-11 03:18:49,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:49,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:49,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:53,775 INFO L353 Elim1Store]: treesize reduction 1639, result has 5.9 percent of original size [2022-01-11 03:18:53,776 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 137 treesize of output 150 [2022-01-11 03:18:54,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:54,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:18:54,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:19:01,014 WARN L228 SmtUtils]: Spent 6.89s on a formula simplification. DAG size of input: 108 DAG size of output: 54 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-01-11 03:19:01,015 INFO L353 Elim1Store]: treesize reduction 1639, result has 5.9 percent of original size [2022-01-11 03:19:01,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 137 treesize of output 150 [2022-01-11 03:19:01,483 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-11 03:19:01,483 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 13 [2022-01-11 03:19:01,512 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-11 03:19:01,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 03:19:06,867 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (<= (div (+ (- 1) (* (- 1) (select (let ((.cse0 (mod (* 3 |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 4294967296))) (store (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* .cse0 4) (* 18446744056529682432 (mod (div .cse0 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0) (mod (+ (mod (let ((.cse1 (mod (+ .cse0 1) 4294967296))) (+ (* (mod (div .cse1 2147483648) 2) 18446744056529682432) (* .cse1 4))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0) (mod (+ (mod (let ((.cse2 (mod (+ .cse0 2) 4294967296))) (+ (* 18446744056529682432 (mod (div .cse2 2147483648) 2)) (* .cse2 4))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0)) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)))) (- 2147483648)) (+ (div (* (- 2) (mod 0 2147483648)) 2147483648) 1))) is different from false [2022-01-11 03:19:17,160 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (<= (div (+ (- 1) (* (- 1) (select (let ((.cse3 (mod (* 3 |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8|) 4294967296))) (store (store (store (let ((.cse0 (mod (* 3 |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 4294967296))) (store (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* .cse0 4) (* 18446744056529682432 (mod (div .cse0 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0) (mod (+ (mod (let ((.cse1 (mod (+ .cse0 1) 4294967296))) (+ (* (mod (div .cse1 2147483648) 2) 18446744056529682432) (* .cse1 4))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0) (mod (+ (mod (let ((.cse2 (mod (+ .cse0 2) 4294967296))) (+ (* 18446744056529682432 (mod (div .cse2 2147483648) 2)) (* .cse2 4))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0)) (mod (+ (mod (+ (* (mod (div .cse3 2147483648) 2) 18446744056529682432) (* .cse3 4)) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| (mod (let ((.cse4 (mod (+ .cse3 1) 4294967296))) (+ (* (mod (div .cse4 2147483648) 2) 18446744056529682432) (* .cse4 4))) 18446744073709551616)) 18446744073709551616) 0) (mod (+ (mod (let ((.cse5 (mod (+ 2 .cse3) 4294967296))) (+ (* (mod (div .cse5 2147483648) 2) 18446744056529682432) (* .cse5 4))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0)) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)))) (- 2147483648)) (+ (div (* (- 2) (mod 0 2147483648)) 2147483648) 1))) is different from true [2022-01-11 03:19:27,232 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| Int)) (<= (div (+ (- 1) (* (- 1) (select (let ((.cse6 (mod (* 3 |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8|) 4294967296))) (store (store (store (let ((.cse3 (mod (* 3 |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10|) 4294967296))) (store (store (store (let ((.cse0 (mod (* 3 |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 4294967296))) (store (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* .cse0 4) (* 18446744056529682432 (mod (div .cse0 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0) (mod (+ (mod (let ((.cse1 (mod (+ .cse0 1) 4294967296))) (+ (* (mod (div .cse1 2147483648) 2) 18446744056529682432) (* .cse1 4))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0) (mod (+ (mod (let ((.cse2 (mod (+ .cse0 2) 4294967296))) (+ (* 18446744056529682432 (mod (div .cse2 2147483648) 2)) (* .cse2 4))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0)) (mod (+ (mod (+ (* (mod (div .cse3 2147483648) 2) 18446744056529682432) (* .cse3 4)) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| (mod (let ((.cse4 (mod (+ .cse3 1) 4294967296))) (+ (* (mod (div .cse4 2147483648) 2) 18446744056529682432) (* .cse4 4))) 18446744073709551616)) 18446744073709551616) 0) (mod (+ (mod (let ((.cse5 (mod (+ 2 .cse3) 4294967296))) (+ (* .cse5 4) (* (mod (div .cse5 2147483648) 2) 18446744056529682432))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0)) (mod (+ (mod (+ (* (mod (div .cse6 2147483648) 2) 18446744056529682432) (* .cse6 4)) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| (mod (let ((.cse7 (mod (+ .cse6 1) 4294967296))) (+ (* (mod (div .cse7 2147483648) 2) 18446744056529682432) (* .cse7 4))) 18446744073709551616)) 18446744073709551616) 0) (mod (+ (mod (let ((.cse8 (mod (+ 2 .cse6) 4294967296))) (+ (* (mod (div .cse8 2147483648) 2) 18446744056529682432) (* .cse8 4))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 0)) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)))) (- 2147483648)) (+ (div (* (- 2) (mod 0 2147483648)) 2147483648) 1))) is different from true [2022-01-11 03:19:31,317 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 411 treesize of output 409 [2022-01-11 03:19:31,330 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 325566 treesize of output 325562