/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_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 11:41:54,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 11:41:54,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 11:41:54,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 11:41:54,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 11:41:54,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 11:41:54,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 11:41:54,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 11:41:54,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 11:41:54,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 11:41:54,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 11:41:54,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 11:41:54,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 11:41:54,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 11:41:54,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 11:41:54,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 11:41:54,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 11:41:54,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 11:41:54,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 11:41:54,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 11:41:54,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 11:41:54,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 11:41:54,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 11:41:54,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 11:41:54,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 11:41:54,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 11:41:54,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 11:41:54,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 11:41:54,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-06 11:41:55,000 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 11:41:55,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 11:41:55,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 11:41:55,003 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 11:41:55,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 11:41:55,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 11:41:55,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 11:41:55,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 11:41:55,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 11:41:55,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 11:41:55,005 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 11:41:55,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 11:41:55,005 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 11:41:55,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 11:41:55,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 11:41:55,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 11:41:55,006 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 11:41:55,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 11:41:55,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:41:55,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 11:41:55,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-06 11:41:55,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 11:41:55,007 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-06 11:41:55,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 11:41:55,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 11:41:55,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 11:41:55,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 11:41:55,375 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 11:41:55,376 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 11:41:55,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c [2021-05-06 11:41:55,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82f109c0/9c50c649152f40c4af3194976dd6b697/FLAG9625caca1 [2021-05-06 11:41:55,904 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 11:41:55,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c [2021-05-06 11:41:55,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82f109c0/9c50c649152f40c4af3194976dd6b697/FLAG9625caca1 [2021-05-06 11:41:56,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82f109c0/9c50c649152f40c4af3194976dd6b697 [2021-05-06 11:41:56,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 11:41:56,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 11:41:56,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 11:41:56,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 11:41:56,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 11:41:56,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:41:56" (1/1) ... [2021-05-06 11:41:56,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ca4b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56, skipping insertion in model container [2021-05-06 11:41:56,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:41:56" (1/1) ... [2021-05-06 11:41:56,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 11:41:56,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 11:41:56,587 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_3.c[11322,11335] [2021-05-06 11:41:56,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:41:56,600 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 11:41:56,692 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_3.c[11322,11335] [2021-05-06 11:41:56,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:41:56,711 INFO L208 MainTranslator]: Completed translation [2021-05-06 11:41:56,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56 WrapperNode [2021-05-06 11:41:56,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 11:41:56,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 11:41:56,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 11:41:56,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 11:41:56,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56" (1/1) ... [2021-05-06 11:41:56,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56" (1/1) ... [2021-05-06 11:41:56,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56" (1/1) ... [2021-05-06 11:41:56,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56" (1/1) ... [2021-05-06 11:41:56,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56" (1/1) ... [2021-05-06 11:41:56,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56" (1/1) ... [2021-05-06 11:41:56,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56" (1/1) ... [2021-05-06 11:41:56,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 11:41:56,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 11:41:56,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 11:41:56,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 11:41:56,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56" (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 [2021-05-06 11:41:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 11:41:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 11:41:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 11:41:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 11:41:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-05-06 11:41:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-05-06 11:41:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-05-06 11:41:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-05-06 11:41:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-05-06 11:41:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-05-06 11:41:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-05-06 11:41:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-05-06 11:41:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 11:41:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 11:41:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 11:41:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 11:41:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 11:41:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 11:41:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 11:41:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-05-06 11:41:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-06 11:41:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-05-06 11:41:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-05-06 11:41:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-05-06 11:41:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-05-06 11:41:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-05-06 11:41:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-06 11:41:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-05-06 11:41:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-05-06 11:41:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-06 11:41:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 11:41:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 11:41:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-06 11:41:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 11:41:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 11:41:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 11:41:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 11:41:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-06 11:41:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-06 11:41:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 11:41:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-06 11:41:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 11:41:57,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 11:41:57,572 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-05-06 11:41:57,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:41:57 BoogieIcfgContainer [2021-05-06 11:41:57,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 11:41:57,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 11:41:57,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 11:41:57,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 11:41:57,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 11:41:56" (1/3) ... [2021-05-06 11:41:57,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0b51f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:41:57, skipping insertion in model container [2021-05-06 11:41:57,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:41:56" (2/3) ... [2021-05-06 11:41:57,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0b51f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:41:57, skipping insertion in model container [2021-05-06 11:41:57,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:41:57" (3/3) ... [2021-05-06 11:41:57,579 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_3.c [2021-05-06 11:41:57,584 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-06 11:41:57,588 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 11:41:57,602 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 11:41:57,616 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 11:41:57,617 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 11:41:57,617 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-06 11:41:57,617 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 11:41:57,617 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 11:41:57,617 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 11:41:57,617 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 11:41:57,617 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 11:41:57,634 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) [2021-05-06 11:41:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-06 11:41:57,645 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:41:57,646 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] [2021-05-06 11:41:57,646 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:41:57,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:41:57,650 INFO L82 PathProgramCache]: Analyzing trace with hash -540283313, now seen corresponding path program 1 times [2021-05-06 11:41:57,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:41:57,661 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930696319] [2021-05-06 11:41:57,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:41:57,720 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:41:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:41:58,123 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-06 11:41:58,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:41:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:41:58,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-06 11:41:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:41:58,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-06 11:41:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:41:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:41:58,214 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:41:58,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930696319] [2021-05-06 11:41:58,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [930696319] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:41:58,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:41:58,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 11:41:58,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151508566] [2021-05-06 11:41:58,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 11:41:58,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:41:58,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 11:41:58,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 11:41:58,242 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) [2021-05-06 11:41:58,388 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-06 11:41:58,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:41:58,896 INFO L93 Difference]: Finished difference Result 243 states and 363 transitions. [2021-05-06 11:41:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 11:41:58,898 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 [2021-05-06 11:41:58,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:41:58,909 INFO L225 Difference]: With dead ends: 243 [2021-05-06 11:41:58,909 INFO L226 Difference]: Without dead ends: 119 [2021-05-06 11:41:58,916 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 286.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-06 11:41:58,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-05-06 11:41:58,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-05-06 11:41:58,999 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) [2021-05-06 11:41:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2021-05-06 11:41:59,005 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2021-05-06 11:41:59,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:41:59,006 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2021-05-06 11:41:59,006 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) [2021-05-06 11:41:59,006 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2021-05-06 11:41:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-06 11:41:59,014 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:41:59,015 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] [2021-05-06 11:41:59,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 11:41:59,015 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:41:59,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:41:59,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1349629939, now seen corresponding path program 1 times [2021-05-06 11:41:59,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:41:59,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855973241] [2021-05-06 11:41:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:41:59,020 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:41:59,065 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-05-06 11:41:59,065 INFO L624 BasicCegarLoop]: Counterexample might be feasible [2021-05-06 11:41:59,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 11:41:59,092 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-05-06 11:41:59,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 11:41:59 BoogieIcfgContainer [2021-05-06 11:41:59,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 11:41:59,095 INFO L168 Benchmark]: Toolchain (without parser) took 2846.13 ms. Allocated memory is still 200.3 MB. Free memory was 164.1 MB in the beginning and 76.7 MB in the end (delta: 87.4 MB). Peak memory consumption was 88.9 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:59,096 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 200.3 MB. Free memory is still 181.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 11:41:59,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.89 ms. Allocated memory is still 200.3 MB. Free memory was 163.9 MB in the beginning and 175.9 MB in the end (delta: -12.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:59,097 INFO L168 Benchmark]: Boogie Preprocessor took 106.67 ms. Allocated memory is still 200.3 MB. Free memory was 175.9 MB in the beginning and 172.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:59,098 INFO L168 Benchmark]: RCFGBuilder took 752.73 ms. Allocated memory is still 200.3 MB. Free memory was 171.7 MB in the beginning and 176.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 62.4 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:59,098 INFO L168 Benchmark]: TraceAbstraction took 1518.13 ms. Allocated memory is still 200.3 MB. Free memory was 176.4 MB in the beginning and 76.7 MB in the end (delta: 99.7 MB). Peak memory consumption was 100.2 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:59,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 200.3 MB. Free memory is still 181.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 458.89 ms. Allocated memory is still 200.3 MB. Free memory was 163.9 MB in the beginning and 175.9 MB in the end (delta: -12.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 106.67 ms. Allocated memory is still 200.3 MB. Free memory was 175.9 MB in the beginning and 172.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 752.73 ms. Allocated memory is still 200.3 MB. Free memory was 171.7 MB in the beginning and 176.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 62.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1518.13 ms. Allocated memory is still 200.3 MB. Free memory was 176.4 MB in the beginning and 76.7 MB in the end (delta: 99.7 MB). Peak memory consumption was 100.2 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_120 * Id_MCDC_118) >= 0 && ( long long ) (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: 1455.3ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 24.7ms, AutomataDifference: 695.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 145 SDtfs, 204 SDslu, 29 SDs, 0 SdLazy, 107 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 317.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 286.9ms 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: 77.4ms 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...