/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/bitvector/num_conversion_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:54:57,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:54:57,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:54:57,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 01:54:57,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 01:54:57,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 01:54:57,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 01:54:57,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 01:54:57,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 01:54:57,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 01:54:57,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 01:54:57,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 01:54:57,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:54:57,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:54:57,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:54:57,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:54:57,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:54:57,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:54:57,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:54:57,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:54:57,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:54:57,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:54:57,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:54:57,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:54:57,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 01:54:57,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 01:54:57,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 01:54:57,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 01:54:57,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 01:54:57,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 01:54:57,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 01:54:57,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 01:54:57,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 01:54:57,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:54:57,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:54:57,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:54:57,255 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 01:54:57,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:54:57,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:54:57,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:54:57,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:54:57,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:54:57,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:54:57,280 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:54:57,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:54:57,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:54:57,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:54:57,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:54:57,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:54:57,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:54:57,281 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:54:57,281 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:54:57,281 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:54:57,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:54:57,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:54:57,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:54:57,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:54:57,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:54:57,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:54:57,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:54:57,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:54:57,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:54:57,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:54:57,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:54:57,283 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:54:57,283 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:54:57,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:54:57,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:54:57,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:54:57,284 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:54:57,284 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:54:57,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:54:57,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:54:57,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:54:57,483 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:54:57,484 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:54:57,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/num_conversion_2.c [2022-01-11 01:54:57,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed06b5aaf/7348fb7afcc943aa889c4aa85932e433/FLAG5a50935bd [2022-01-11 01:54:57,891 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:54:57,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/num_conversion_2.c [2022-01-11 01:54:57,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed06b5aaf/7348fb7afcc943aa889c4aa85932e433/FLAG5a50935bd [2022-01-11 01:54:58,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed06b5aaf/7348fb7afcc943aa889c4aa85932e433 [2022-01-11 01:54:58,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:54:58,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:54:58,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:54:58,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:54:58,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:54:58,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50934d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58, skipping insertion in model container [2022-01-11 01:54:58,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:54:58,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:54:58,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/num_conversion_2.c[685,698] [2022-01-11 01:54:58,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:54:58,498 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:54:58,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/num_conversion_2.c[685,698] [2022-01-11 01:54:58,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:54:58,516 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:54:58,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58 WrapperNode [2022-01-11 01:54:58,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:54:58,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:54:58,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:54:58,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:54:58,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,536 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-01-11 01:54:58,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:54:58,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:54:58,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:54:58,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:54:58,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:54:58,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:54:58,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:54:58,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:54:58,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:54:58,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:54:58,592 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 01:54:58,600 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 01:54:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:54:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:54:58,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:54:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:54:58,670 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:54:58,671 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:54:58,790 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:54:58,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:54:58,794 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 01:54:58,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:54:58 BoogieIcfgContainer [2022-01-11 01:54:58,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:54:58,796 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:54:58,796 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:54:58,798 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:54:58,800 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:54:58" (1/1) ... [2022-01-11 01:54:58,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:54:58 BasicIcfg [2022-01-11 01:54:58,911 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:54:58,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:54:58,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:54:58,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:54:58,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:54:58" (1/4) ... [2022-01-11 01:54:58,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1075d2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:54:58, skipping insertion in model container [2022-01-11 01:54:58,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:54:58" (2/4) ... [2022-01-11 01:54:58,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1075d2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:54:58, skipping insertion in model container [2022-01-11 01:54:58,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:54:58" (3/4) ... [2022-01-11 01:54:58,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1075d2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:54:58, skipping insertion in model container [2022-01-11 01:54:58,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:54:58" (4/4) ... [2022-01-11 01:54:58,923 INFO L111 eAbstractionObserver]: Analyzing ICFG num_conversion_2.cTransformedIcfg [2022-01-11 01:54:58,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:54:58,936 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 01:54:58,963 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:54:58,967 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 01:54:58,968 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 01:54:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:54:58,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 01:54:58,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:54:58,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 01:54:58,979 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:54:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:54:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1983079720, now seen corresponding path program 1 times [2022-01-11 01:54:58,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:54:58,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919221492] [2022-01-11 01:54:58,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:54:58,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:54:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:54:59,136 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 01:54:59,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:54:59,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919221492] [2022-01-11 01:54:59,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919221492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:54:59,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:54:59,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:54:59,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95108126] [2022-01-11 01:54:59,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:54:59,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 01:54:59,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:54:59,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 01:54:59,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 01:54:59,167 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 01:54:59,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:54:59,177 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-01-11 01:54:59,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 01:54:59,178 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-01-11 01:54:59,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:54:59,183 INFO L225 Difference]: With dead ends: 21 [2022-01-11 01:54:59,183 INFO L226 Difference]: Without dead ends: 9 [2022-01-11 01:54:59,186 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 01:54:59,189 INFO L933 BasicCegarLoop]: 14 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, 14 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 01:54:59,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:54:59,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-11 01:54:59,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-11 01:54:59,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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 01:54:59,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-01-11 01:54:59,218 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2022-01-11 01:54:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:54:59,219 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-01-11 01:54:59,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 01:54:59,220 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-01-11 01:54:59,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 01:54:59,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:54:59,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 01:54:59,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:54:59,221 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:54:59,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:54:59,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1983109511, now seen corresponding path program 1 times [2022-01-11 01:54:59,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:54:59,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510478406] [2022-01-11 01:54:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:54:59,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:54:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:54:59,310 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 01:54:59,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:54:59,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510478406] [2022-01-11 01:54:59,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510478406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:54:59,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:54:59,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:54:59,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411058078] [2022-01-11 01:54:59,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:54:59,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:54:59,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:54:59,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:54:59,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:54:59,313 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 01:55:00,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:55:00,468 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2022-01-11 01:55:00,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:55:00,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-01-11 01:55:00,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:55:00,477 INFO L225 Difference]: With dead ends: 16 [2022-01-11 01:55:00,477 INFO L226 Difference]: Without dead ends: 12 [2022-01-11 01:55:00,477 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 01:55:00,478 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-11 01:55:00,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-11 01:55:00,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-01-11 01:55:00,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2022-01-11 01:55:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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 01:55:00,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-01-11 01:55:00,481 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2022-01-11 01:55:00,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:55:00,481 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-01-11 01:55:00,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 01:55:00,482 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-01-11 01:55:00,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 01:55:00,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:55:00,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:55:00,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:55:00,482 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:55:00,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:55:00,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1836898224, now seen corresponding path program 1 times [2022-01-11 01:55:00,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:55:00,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027334747] [2022-01-11 01:55:00,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:55:00,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:55:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:55:01,676 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 01:55:01,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:55:01,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027334747] [2022-01-11 01:55:01,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027334747] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 01:55:01,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506433893] [2022-01-11 01:55:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:55:01,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 01:55:01,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:55:01,692 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 01:55:01,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process