/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_BITWISE.epf -i ../../../trunk/examples/svcomp/xcsp/Dubois-023.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:26:17,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:26:17,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:26:17,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 13:26:17,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 13:26:17,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 13:26:17,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 13:26:17,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 13:26:17,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 13:26:17,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 13:26:17,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 13:26:17,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 13:26:17,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:26:17,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:26:17,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:26:17,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:26:17,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:26:17,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:26:17,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:26:17,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:26:17,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:26:17,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:26:17,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:26:17,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:26:17,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 13:26:17,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 13:26:17,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 13:26:17,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 13:26:17,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 13:26:17,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 13:26:17,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 13:26:17,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 13:26:17,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 13:26:17,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:26:17,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:26:17,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:26:17,643 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:26:17,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:26:17,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:26:17,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:26:17,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:26:17,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:26:17,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:26:17,678 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:26:17,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:26:17,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:26:17,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:26:17,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:26:17,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:26:17,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:26:17,680 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:26:17,680 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:26:17,680 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:26:17,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:26:17,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:26:17,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:26:17,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:26:17,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:26:17,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:26:17,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:26:17,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:26:17,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:26:17,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:26:17,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:26:17,682 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:26:17,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:26:17,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:26:17,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:26:17,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:26:17,683 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:26:17,683 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:26:17,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:26:17,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:26:17,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:26:17,937 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:26:17,939 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:26:17,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/xcsp/Dubois-023.c [2022-01-10 13:26:17,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e182ee4/d6ae1c6c58134cec88bdb4123a92bc2a/FLAG854235b33 [2022-01-10 13:26:18,414 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:26:18,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/xcsp/Dubois-023.c [2022-01-10 13:26:18,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e182ee4/d6ae1c6c58134cec88bdb4123a92bc2a/FLAG854235b33 [2022-01-10 13:26:18,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e182ee4/d6ae1c6c58134cec88bdb4123a92bc2a [2022-01-10 13:26:18,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:26:18,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:26:18,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:26:18,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:26:18,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:26:18,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:18,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb72bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18, skipping insertion in model container [2022-01-10 13:26:18,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:18,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:26:18,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:26:18,836 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/Dubois-023.c[16452,16465] [2022-01-10 13:26:18,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:26:18,858 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:26:18,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/Dubois-023.c[16452,16465] [2022-01-10 13:26:18,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:26:18,932 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:26:18,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18 WrapperNode [2022-01-10 13:26:18,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:26:18,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:26:18,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:26:18,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:26:18,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:18,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:19,028 INFO L137 Inliner]: procedures = 13, calls = 191, calls flagged for inlining = 186, calls inlined = 186, statements flattened = 960 [2022-01-10 13:26:19,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:26:19,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:26:19,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:26:19,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:26:19,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:19,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:19,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:19,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:19,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:19,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:19,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:19,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:26:19,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:26:19,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:26:19,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:26:19,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (1/1) ... [2022-01-10 13:26:19,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:26:19,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:26:19,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 13:26:19,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 13:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:26:19,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:26:19,332 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:26:19,333 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:26:20,010 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:26:20,024 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:26:20,026 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 13:26:20,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:26:20 BoogieIcfgContainer [2022-01-10 13:26:20,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:26:20,029 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:26:20,029 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:26:20,031 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:26:20,034 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:26:20" (1/1) ... [2022-01-10 13:26:22,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:26:22 BasicIcfg [2022-01-10 13:26:22,166 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:26:22,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:26:22,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:26:22,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:26:22,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:26:18" (1/4) ... [2022-01-10 13:26:22,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf2310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:26:22, skipping insertion in model container [2022-01-10 13:26:22,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:26:18" (2/4) ... [2022-01-10 13:26:22,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf2310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:26:22, skipping insertion in model container [2022-01-10 13:26:22,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:26:20" (3/4) ... [2022-01-10 13:26:22,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf2310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:26:22, skipping insertion in model container [2022-01-10 13:26:22,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:26:22" (4/4) ... [2022-01-10 13:26:22,173 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-023.cTransformedIcfg [2022-01-10 13:26:22,178 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:26:22,178 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 13:26:22,228 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:26:22,234 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 13:26:22,234 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 13:26:22,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 375 states, 373 states have (on average 1.4959785522788205) internal successors, (558), 374 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:26:22,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-01-10 13:26:22,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:26:22,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:26:22,285 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:26:22,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:26:22,293 INFO L85 PathProgramCache]: Analyzing trace with hash -646437869, now seen corresponding path program 1 times [2022-01-10 13:26:22,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:26:22,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303248894] [2022-01-10 13:26:22,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:26:22,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:26:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:26:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:26:23,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:26:23,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303248894] [2022-01-10 13:26:23,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303248894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:26:23,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:26:23,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:26:23,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374444878] [2022-01-10 13:26:23,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:26:23,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 13:26:23,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:26:23,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 13:26:23,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 13:26:23,678 INFO L87 Difference]: Start difference. First operand has 375 states, 373 states have (on average 1.4959785522788205) internal successors, (558), 374 states have internal predecessors, (558), 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 185.5) internal successors, (371), 2 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:26:23,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:26:23,721 INFO L93 Difference]: Finished difference Result 744 states and 1110 transitions. [2022-01-10 13:26:23,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 13:26:23,724 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 185.5) internal successors, (371), 2 states have internal predecessors, (371), 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 371 [2022-01-10 13:26:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:26:23,740 INFO L225 Difference]: With dead ends: 744 [2022-01-10 13:26:23,740 INFO L226 Difference]: Without dead ends: 372 [2022-01-10 13:26:23,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 13:26:23,750 INFO L933 BasicCegarLoop]: 371 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, 371 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:26:23,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:26:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-01-10 13:26:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2022-01-10 13:26:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 371 states have (on average 1.0) internal successors, (371), 371 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:26:23,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 371 transitions. [2022-01-10 13:26:23,815 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 371 transitions. Word has length 371 [2022-01-10 13:26:23,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:26:23,816 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 371 transitions. [2022-01-10 13:26:23,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 185.5) internal successors, (371), 2 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:26:23,816 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 371 transitions. [2022-01-10 13:26:23,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-01-10 13:26:23,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:26:23,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:26:23,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:26:23,824 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:26:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:26:23,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2107612800, now seen corresponding path program 1 times [2022-01-10 13:26:23,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:26:23,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278213132] [2022-01-10 13:26:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:26:23,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms