/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 23:49:35,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 23:49:35,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 23:49:35,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 23:49:35,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 23:49:35,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 23:49:35,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 23:49:35,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 23:49:35,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 23:49:35,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 23:49:35,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 23:49:35,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 23:49:35,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 23:49:35,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 23:49:35,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 23:49:35,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 23:49:35,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 23:49:35,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 23:49:35,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 23:49:35,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 23:49:35,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 23:49:35,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 23:49:35,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 23:49:35,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 23:49:35,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 23:49:35,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 23:49:35,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 23:49:35,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 23:49:35,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-02 23:49:35,685 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 23:49:35,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 23:49:35,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 23:49:35,710 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 23:49:35,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 23:49:35,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 23:49:35,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 23:49:35,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 23:49:35,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 23:49:35,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 23:49:35,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 23:49:35,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 23:49:35,712 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 23:49:35,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 23:49:35,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 23:49:35,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 23:49:35,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 23:49:35,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 23:49:35,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 23:49:35,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 23:49:35,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-02 23:49:35,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-02 23:49:35,713 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-02 23:49:35,713 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 23:49:36,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 23:49:36,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 23:49:36,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 23:49:36,081 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 23:49:36,084 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 23:49:36,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2021-05-02 23:49:36,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/581deaaa1/81a27f8557024b60a26e0a176b822d2a/FLAG3db4a90c0 [2021-05-02 23:49:36,652 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 23:49:36,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2021-05-02 23:49:36,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/581deaaa1/81a27f8557024b60a26e0a176b822d2a/FLAG3db4a90c0 [2021-05-02 23:49:37,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/581deaaa1/81a27f8557024b60a26e0a176b822d2a [2021-05-02 23:49:37,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 23:49:37,025 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-02 23:49:37,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 23:49:37,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 23:49:37,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 23:49:37,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 11:49:37" (1/1) ... [2021-05-02 23:49:37,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38913d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37, skipping insertion in model container [2021-05-02 23:49:37,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 11:49:37" (1/1) ... [2021-05-02 23:49:37,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 23:49:37,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 23:49:37,348 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-05-02 23:49:37,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 23:49:37,363 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 23:49:37,430 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-05-02 23:49:37,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 23:49:37,448 INFO L208 MainTranslator]: Completed translation [2021-05-02 23:49:37,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37 WrapperNode [2021-05-02 23:49:37,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 23:49:37,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 23:49:37,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 23:49:37,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 23:49:37,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37" (1/1) ... [2021-05-02 23:49:37,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37" (1/1) ... [2021-05-02 23:49:37,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37" (1/1) ... [2021-05-02 23:49:37,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37" (1/1) ... [2021-05-02 23:49:37,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37" (1/1) ... [2021-05-02 23:49:37,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37" (1/1) ... [2021-05-02 23:49:37,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37" (1/1) ... [2021-05-02 23:49:37,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 23:49:37,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 23:49:37,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 23:49:37,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 23:49:37,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 23:49:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 23:49:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 23:49:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 23:49:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 23:49:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-05-02 23:49:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-05-02 23:49:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-05-02 23:49:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-05-02 23:49:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-05-02 23:49:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-05-02 23:49:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-05-02 23:49:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-05-02 23:49:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 23:49:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 23:49:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 23:49:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 23:49:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 23:49:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-05-02 23:49:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-02 23:49:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 23:49:38,484 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 23:49:38,485 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-05-02 23:49:38,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 11:49:38 BoogieIcfgContainer [2021-05-02 23:49:38,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 23:49:38,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 23:49:38,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 23:49:38,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 23:49:38,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 11:49:37" (1/3) ... [2021-05-02 23:49:38,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b3e310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 11:49:38, skipping insertion in model container [2021-05-02 23:49:38,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:37" (2/3) ... [2021-05-02 23:49:38,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b3e310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 11:49:38, skipping insertion in model container [2021-05-02 23:49:38,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 11:49:38" (3/3) ... [2021-05-02 23:49:38,494 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_2.c [2021-05-02 23:49:38,500 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-02 23:49:38,503 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 23:49:38,518 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 23:49:38,535 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 23:49:38,536 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-02 23:49:38,536 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-02 23:49:38,536 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 23:49:38,536 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 23:49:38,536 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 23:49:38,536 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 23:49:38,536 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 23:49:38,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-02 23:49:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-02 23:49:38,566 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 23:49:38,567 INFO L523 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] [2021-05-02 23:49:38,567 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 23:49:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 23:49:38,572 INFO L82 PathProgramCache]: Analyzing trace with hash -540283313, now seen corresponding path program 1 times [2021-05-02 23:49:38,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-02 23:49:38,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594966205] [2021-05-02 23:49:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 23:49:38,630 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-02 23:49:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 23:49:39,072 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-02 23:49:39,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 23:49:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 23:49:39,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-02 23:49:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 23:49:39,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 23:49:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 23:49:39,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 23:49:39,142 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-02 23:49:39,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594966205] [2021-05-02 23:49:39,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [594966205] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 23:49:39,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 23:49:39,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-02 23:49:39,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761960592] [2021-05-02 23:49:39,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-02 23:49:39,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-02 23:49:39,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-02 23:49:39,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-02 23:49:39,160 INFO L87 Difference]: Start difference. First operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-02 23:49:39,333 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-02 23:49:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 23:49:39,977 INFO L93 Difference]: Finished difference Result 243 states and 363 transitions. [2021-05-02 23:49:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 23:49:39,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-05-02 23:49:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 23:49:39,987 INFO L225 Difference]: With dead ends: 243 [2021-05-02 23:49:39,987 INFO L226 Difference]: Without dead ends: 119 [2021-05-02 23:49:39,991 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 387.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-02 23:49:40,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-05-02 23:49:40,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-05-02 23:49:40,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.4574468085106382) internal successors, (137), 95 states have internal predecessors, (137), 16 states have call successors, (16), 11 states have call predecessors, (16), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-02 23:49:40,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2021-05-02 23:49:40,064 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2021-05-02 23:49:40,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 23:49:40,065 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2021-05-02 23:49:40,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-02 23:49:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2021-05-02 23:49:40,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-02 23:49:40,073 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 23:49:40,074 INFO L523 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] [2021-05-02 23:49:40,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 23:49:40,075 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 23:49:40,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 23:49:40,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1349629939, now seen corresponding path program 1 times [2021-05-02 23:49:40,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-02 23:49:40,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996157375] [2021-05-02 23:49:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 23:49:40,084 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-02 23:49:40,150 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-05-02 23:49:40,150 INFO L624 BasicCegarLoop]: Counterexample might be feasible [2021-05-02 23:49:40,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-02 23:49:40,181 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-05-02 23:49:40,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 11:49:40 BoogieIcfgContainer [2021-05-02 23:49:40,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 23:49:40,185 INFO L168 Benchmark]: Toolchain (without parser) took 3157.37 ms. Allocated memory was 206.6 MB in the beginning and 283.1 MB in the end (delta: 76.5 MB). Free memory was 170.8 MB in the beginning and 212.4 MB in the end (delta: -41.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 8.0 GB. [2021-05-02 23:49:40,185 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 206.6 MB. Free memory is still 188.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 23:49:40,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.24 ms. Allocated memory is still 206.6 MB. Free memory was 170.3 MB in the beginning and 182.9 MB in the end (delta: -12.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-02 23:49:40,187 INFO L168 Benchmark]: Boogie Preprocessor took 93.90 ms. Allocated memory is still 206.6 MB. Free memory was 182.9 MB in the beginning and 179.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-02 23:49:40,187 INFO L168 Benchmark]: RCFGBuilder took 936.34 ms. Allocated memory is still 206.6 MB. Free memory was 179.0 MB in the beginning and 165.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 44.6 MB. Max. memory is 8.0 GB. [2021-05-02 23:49:40,188 INFO L168 Benchmark]: TraceAbstraction took 1693.14 ms. Allocated memory was 206.6 MB in the beginning and 283.1 MB in the end (delta: 76.5 MB). Free memory was 164.8 MB in the beginning and 212.4 MB in the end (delta: -47.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2021-05-02 23:49:40,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 206.6 MB. Free memory is still 188.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 419.24 ms. Allocated memory is still 206.6 MB. Free memory was 170.3 MB in the beginning and 182.9 MB in the end (delta: -12.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.90 ms. Allocated memory is still 206.6 MB. Free memory was 182.9 MB in the beginning and 179.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 936.34 ms. Allocated memory is still 206.6 MB. Free memory was 179.0 MB in the beginning and 165.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 44.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1693.14 ms. Allocated memory was 206.6 MB in the beginning and 283.1 MB in the end (delta: 76.5 MB). Free memory was 164.8 MB in the beginning and 212.4 MB in the end (delta: -47.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 463]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L181] unsigned int Id_MCDC_104; [L182] UINT16 Id_MCDC_105; [L183] UINT16 Id_MCDC_106; [L184] Od_IndexTable* Id_MCDC_107; [L185] Od_IndexTable* Id_MCDC_108; [L186] Od_IndexTable* Id_MCDC_109; [L187] Od_IndexTable* Id_MCDC_110; [L188] Od_IndexTable* Id_MCDC_111; [L189] UINT32 Id_MCDC_112 [4]; [L190] CanOpenNode Id_MCDC_113; [L191] UINT32 Id_MCDC_114=0; [L429] void * Id_MCDC_143; [L430] void * Id_MCDC_144; [L431] void * Id_MCDC_145; [L432] void * Id_MCDC_146; [L433] void * Id_MCDC_147; [L434] void * Id_MCDC_148; [L435] int Id_MCDC_149; [L436] int Id_MCDC_150; [L437] int Id_MCDC_151; [L438] int Id_MCDC_152; [L439] int Id_MCDC_153; [L440] int Id_MCDC_154; [L441] int Id_MCDC_155; [L442] short Id_MCDC_156; [L443] short Id_MCDC_157; [L444] FILE* Id_MCDC_158; [L445] unsigned short Id_MCDC_159; [L446] unsigned short Id_MCDC_160; [L447] unsigned short Id_MCDC_161=0; [L448] unsigned short Id_MCDC_162=0; [L449] char Id_MCDC_163; [L450] char Id_MCDC_164; [L451] Id_MCDC_158 = fopen("in.eds", "r") [L452] COND FALSE !(Id_MCDC_158 == (( void * ) 0)) [L457] CALL Id_MCDC_100() [L422] int Id_MCDC_141; [L423] void * Id_MCDC_142; [L424] CALL Id_MCDC_99() [L402] CHAR Id_MCDC_139 [4]={0, 0, 0, 0}; [L403] UINT32 Id_MCDC_140=0; [L404] Id_MCDC_113.Id_MCDC_66 = ( PDO_Buffer* ) malloc(372) [L405] CALL Id_MCDC_97() [L333] UINT32 Id_MCDC_123; [L334] UINT32 Id_MCDC_124; [L335] UINT32 Id_MCDC_125; [L336] UINT32 Id_MCDC_126; [L337] UINT32 Id_MCDC_127; [L338] UINT32 Id_MCDC_128=0x00; [L339] UINT16 Id_MCDC_129; [L340] UINT32 Id_MCDC_130=0x00; [L341] UINT32 Id_MCDC_131=0x00; [L342] UINT8 Id_MCDC_35=0; [L343] UINT8 Id_MCDC_132=0; [L344] UINT8 Id_MCDC_36=0; [L345] UINT8 Id_MCDC_133=0; [L346] UINT8 Id_MCDC_134=0x00; [L347] INT32 Id_MCDC_135; [L348] void * Id_MCDC_136; [L349] UINT32* Id_MCDC_137; [L350] UINT16 Id_MCDC_138; [L351] Id_MCDC_123 = 0x1800 [L352] Id_MCDC_132 = 0 [L352] COND FALSE !(Id_MCDC_132 < 4) [L356] COND FALSE !(Id_MCDC_123 <= 0x1803) [L398] return 0x00; [L338] UINT32 Id_MCDC_128=0x00; [L398] return 0x00; [L340] UINT32 Id_MCDC_130=0x00; [L398] return 0x00; [L341] UINT32 Id_MCDC_131=0x00; [L398] return 0x00; [L398] return 0x00; [L398] return 0x00; [L405] RET Id_MCDC_97() [L406] Id_MCDC_140 = 0 [L406] COND FALSE !(Id_MCDC_140 < 4) [L417] CALL Id_MCDC_95(4, Id_MCDC_139) [L282] UINT32 Id_MCDC_121=0; [L283] UINT32 Id_MCDC_122=0; [L284] COND FALSE !(Id_MCDC_93 < 2) [L288] COND FALSE !(Id_MCDC_93 != 2) [L294] EXPR Id_MCDC_94[1] [L294] Id_MCDC_122 = Id_MCDC_94[1] [L296] EXPR Id_MCDC_94[0] [L296] CALL Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L251] UINT32 Id_MCDC_117=0; [L252] UINT32 Id_MCDC_118=0; [L253] UINT32 Id_MCDC_119=1; [L254] UINT32 Id_MCDC_120=0; [L255] COND TRUE Id_MCDC_90 > Id_MCDC_91 [L257] Id_MCDC_117 = Id_MCDC_90 [L258] Id_MCDC_118 = Id_MCDC_91 [L270] COND TRUE Id_MCDC_119 != 0 [L272] CALL avoid_zero(Id_MCDC_118 != 0) [L11] COND FALSE !(!y) [L272] RET avoid_zero(Id_MCDC_118 != 0) [L273] Id_MCDC_120 = ( UINT32 ) (Id_MCDC_117 / Id_MCDC_118) [L274] CALL __VERIFIER_assert(( long long ) (Id_MCDC_117 - (Id_MCDC_120 * Id_MCDC_118)) >= 0 && ( long long ) (Id_MCDC_117 - (Id_MCDC_120 * Id_MCDC_118)) <= 4294967295) [L461] COND TRUE ! (Id_MCDC_103) [L463] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 135 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 1621.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 21.1ms, AutomataDifference: 842.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 145 SDtfs, 204 SDslu, 29 SDs, 0 SdLazy, 107 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 351.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 387.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 61.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...