/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/list-simple/sll2n_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:27:47,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:27:47,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:27:47,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:27:47,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:27:47,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:27:47,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:27:47,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:27:47,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:27:47,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:27:47,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:27:47,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:27:47,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:27:47,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:27:47,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:27:47,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:27:47,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:27:47,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:27:47,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:27:47,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:27:47,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:27:47,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:27:47,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:27:47,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:27:47,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 05:27:47,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:27:47,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:27:47,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:27:47,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:27:47,667 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:27:47,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:27:47,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:27:47,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:27:47,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:27:47,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:27:47,668 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:27:47,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:27:47,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:27:47,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:27:47,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:27:47,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:27:47,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:27:47,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:27:47,670 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:27:47,670 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:27:47,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:27:47,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:27:47,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:27:47,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:27:47,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:27:47,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:27:47,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:27:47,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:27:47,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:27:47,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:27:47,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:27:47,671 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:27:47,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:27:47,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:27:47,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:27:47,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:27:47,674 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:27:47,674 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:27:47,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:27:47,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:27:47,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:27:47,844 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:27:47,845 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:27:47,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2022-01-11 05:27:47,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763fecb56/c6b86d20b70146e2a5c58d7024d774c4/FLAG34fb7b7e6 [2022-01-11 05:27:48,259 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:27:48,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2022-01-11 05:27:48,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763fecb56/c6b86d20b70146e2a5c58d7024d774c4/FLAG34fb7b7e6 [2022-01-11 05:27:48,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763fecb56/c6b86d20b70146e2a5c58d7024d774c4 [2022-01-11 05:27:48,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:27:48,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:27:48,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:27:48,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:27:48,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:27:48,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f33260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48, skipping insertion in model container [2022-01-11 05:27:48,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:27:48,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:27:48,530 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i[24620,24633] [2022-01-11 05:27:48,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:27:48,541 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:27:48,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i[24620,24633] [2022-01-11 05:27:48,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:27:48,588 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:27:48,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48 WrapperNode [2022-01-11 05:27:48,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:27:48,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:27:48,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:27:48,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:27:48,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,640 INFO L137 Inliner]: procedures = 131, calls = 36, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 162 [2022-01-11 05:27:48,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:27:48,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:27:48,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:27:48,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:27:48,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:27:48,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:27:48,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:27:48,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:27:48,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (1/1) ... [2022-01-11 05:27:48,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:27:48,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:27:48,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:27:48,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:27:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 05:27:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-11 05:27:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:27:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 05:27:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-11 05:27:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-11 05:27:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 05:27:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 05:27:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-11 05:27:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:27:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:27:48,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:27:48,887 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:27:48,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:27:49,151 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:27:49,155 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:27:49,156 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-11 05:27:49,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:27:49 BoogieIcfgContainer [2022-01-11 05:27:49,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:27:49,157 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:27:49,157 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:27:49,161 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:27:49,163 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:27:49" (1/1) ... [2022-01-11 05:27:49,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:27:49 BasicIcfg [2022-01-11 05:27:49,261 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:27:49,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:27:49,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:27:49,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:27:49,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:27:48" (1/4) ... [2022-01-11 05:27:49,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9fe426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:27:49, skipping insertion in model container [2022-01-11 05:27:49,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:27:48" (2/4) ... [2022-01-11 05:27:49,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9fe426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:27:49, skipping insertion in model container [2022-01-11 05:27:49,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:27:49" (3/4) ... [2022-01-11 05:27:49,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9fe426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:27:49, skipping insertion in model container [2022-01-11 05:27:49,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:27:49" (4/4) ... [2022-01-11 05:27:49,267 INFO L111 eAbstractionObserver]: Analyzing ICFG sll2n_insert_unequal.iTransformedIcfg [2022-01-11 05:27:49,272 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:27:49,272 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 05:27:49,304 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:27:49,308 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:27:49,309 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 05:27:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.6) internal successors, (48), 31 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:27:49,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 05:27:49,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:27:49,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:27:49,321 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:27:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:27:49,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1855698702, now seen corresponding path program 1 times [2022-01-11 05:27:49,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:27:49,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294063111] [2022-01-11 05:27:49,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:27:49,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:27:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:27:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:27:49,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:27:49,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294063111] [2022-01-11 05:27:49,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294063111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:27:49,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:27:49,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:27:49,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545642765] [2022-01-11 05:27:49,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:27:49,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:27:49,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:27:49,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:27:49,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:27:49,480 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.6) internal successors, (48), 31 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:27:49,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:27:49,493 INFO L93 Difference]: Finished difference Result 56 states and 85 transitions. [2022-01-11 05:27:49,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:27:49,495 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2022-01-11 05:27:49,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:27:49,500 INFO L225 Difference]: With dead ends: 56 [2022-01-11 05:27:49,500 INFO L226 Difference]: Without dead ends: 25 [2022-01-11 05:27:49,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:27:49,504 INFO L933 BasicCegarLoop]: 42 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, 42 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:27:49,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:27:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-11 05:27:49,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-01-11 05:27:49,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:27:49,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2022-01-11 05:27:49,534 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 15 [2022-01-11 05:27:49,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:27:49,534 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2022-01-11 05:27:49,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:27:49,536 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-01-11 05:27:49,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 05:27:49,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:27:49,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:27:49,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:27:49,537 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:27:49,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:27:49,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1845167920, now seen corresponding path program 1 times [2022-01-11 05:27:49,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:27:49,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338862725] [2022-01-11 05:27:49,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:27:49,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:27:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:27:49,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:27:49,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:27:49,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338862725] [2022-01-11 05:27:49,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338862725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:27:49,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:27:49,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:27:49,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833702063] [2022-01-11 05:27:49,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:27:49,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:27:49,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:27:49,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:27:49,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:27:49,699 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:27:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:27:49,719 INFO L93 Difference]: Finished difference Result 49 states and 66 transitions. [2022-01-11 05:27:49,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:27:49,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2022-01-11 05:27:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:27:49,721 INFO L225 Difference]: With dead ends: 49 [2022-01-11 05:27:49,721 INFO L226 Difference]: Without dead ends: 38 [2022-01-11 05:27:49,723 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 05:27:49,724 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:27:49,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 58 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:27:49,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-01-11 05:27:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2022-01-11 05:27:49,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 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) [2022-01-11 05:27:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-01-11 05:27:49,730 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 15 [2022-01-11 05:27:49,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:27:49,735 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-01-11 05:27:49,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:27:49,735 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-01-11 05:27:49,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 05:27:49,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:27:49,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:27:49,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:27:49,736 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:27:49,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:27:49,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1816538769, now seen corresponding path program 1 times [2022-01-11 05:27:49,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:27:49,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334650768] [2022-01-11 05:27:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:27:49,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:27:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:27:49,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:27:49,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:27:49,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334650768] [2022-01-11 05:27:49,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334650768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:27:49,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:27:49,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:27:49,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858358723] [2022-01-11 05:27:49,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:27:49,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:27:49,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:27:49,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:27:49,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:27:49,868 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:27:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:27:49,885 INFO L93 Difference]: Finished difference Result 52 states and 68 transitions. [2022-01-11 05:27:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:27:49,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2022-01-11 05:27:49,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:27:49,886 INFO L225 Difference]: With dead ends: 52 [2022-01-11 05:27:49,886 INFO L226 Difference]: Without dead ends: 32 [2022-01-11 05:27:49,887 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 05:27:49,890 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:27:49,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 58 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:27:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-01-11 05:27:49,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2022-01-11 05:27:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:27:49,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2022-01-11 05:27:49,897 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 15 [2022-01-11 05:27:49,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:27:49,897 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-01-11 05:27:49,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:27:49,898 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-01-11 05:27:49,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-11 05:27:49,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:27:49,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:27:49,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:27:49,899 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:27:49,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:27:49,900 INFO L85 PathProgramCache]: Analyzing trace with hash 602220779, now seen corresponding path program 1 times [2022-01-11 05:27:49,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:27:49,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242500752] [2022-01-11 05:27:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:27:49,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:27:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:27:50,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:27:50,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:27:50,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242500752] [2022-01-11 05:27:50,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242500752] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:27:50,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984596560] [2022-01-11 05:27:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:27:50,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:27:50,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:27:50,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 05:27:50,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 05:27:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:27:50,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 22 conjunts are in the unsatisfiable core [2022-01-11 05:27:50,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:27:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:27:50,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 05:28:19,705 WARN L228 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-01-11 05:28:47,190 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* (- 2) (mod 0 2147483648))) (.cse2 (= (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 2147483648) 2) 0))) (and (let ((.cse0 (div |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 2))) (or (<= .cse0 0) (<= 4294967296 .cse0) (< (div (+ (- 1) (* (- 1) .cse0)) (- 2147483648)) (+ 2 (div (+ (- 1) .cse0 .cse1) 4294967296))) (not .cse2))) (let ((.cse3 (mod (* 4294967295 (div (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 4294967295) 4294967296) 2)) 4294967296))) (or (< (div (+ (- 1) (* (- 1) .cse3)) (- 2147483648)) (+ 2 (div (+ (- 1) .cse1 .cse3) 4294967296))) .cse2 (<= .cse3 0))))) is different from false [2022-01-11 05:28:49,289 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (* (- 2) (mod 0 2147483648))) (.cse2 (= (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 2147483648) 2) 0))) (and (let ((.cse0 (div |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 2))) (or (<= .cse0 0) (<= 4294967296 .cse0) (< (div (+ (- 1) (* (- 1) .cse0)) (- 2147483648)) (+ 2 (div (+ (- 1) .cse0 .cse1) 4294967296))) (not .cse2))) (let ((.cse3 (mod (* 4294967295 (div (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 4294967295) 4294967296) 2)) 4294967296))) (or (< (div (+ (- 1) (* (- 1) .cse3)) (- 2147483648)) (+ 2 (div (+ (- 1) .cse1 .cse3) 4294967296))) .cse2 (<= .cse3 0))))) is different from true [2022-01-11 05:28:57,830 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 2147483648) 2) 0))) (and (or .cse0 (<= (mod (* 4294967295 (div (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 4294967295) 4294967296) 2)) 4294967296) 0)) (let ((.cse1 (div |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 2))) (or (<= .cse1 0) (<= 4294967296 .cse1) (< (div (+ (- 1) (* (- 1) .cse1)) (- 2147483648)) (+ 2 (div (+ (- 1) .cse1 (* (- 2) (mod 0 2147483648))) 4294967296))) (not .cse0))))) is different from true [2022-01-11 05:29:06,317 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (mod 0 2147483648))) (or (let ((.cse0 (= (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 2147483648) 2) 0))) (and (or .cse0 (<= (mod (* 4294967295 (div (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 4294967295) 4294967296) 2)) 4294967296) 0)) (let ((.cse1 (div |c_ULTIMATE.start_ULTIMATE.start_main_~len~0#1Int| 2))) (or (<= .cse1 0) (<= 4294967296 .cse1) (< (div (+ (- 1) (* (- 1) .cse1)) (- 2147483648)) (+ 2 (div (+ (- 1) .cse1 (* (- 2) .cse2)) 4294967296))) (not .cse0))))) (< (+ (* 2 .cse2) |c_ULTIMATE.start_ULTIMATE.start_sll_create_~len#1Int|) (* (mod |c_ULTIMATE.start_ULTIMATE.start_sll_create_~len#1Int| 2147483648) 2)))) is different from true