java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-benchs/interpolation2.c.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:03:58,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:03:58,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:03:58,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:03:58,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:03:58,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:03:58,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:03:58,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:03:58,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:03:58,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:03:58,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:03:58,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:03:58,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:03:58,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:03:58,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:03:58,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:03:58,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:03:58,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:03:58,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:03:58,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:03:58,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:03:58,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:03:58,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:03:58,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:03:58,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:03:58,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:03:58,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:03:58,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:03:58,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:03:58,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:03:58,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:03:58,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:03:58,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:03:58,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:03:58,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:03:58,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:03:58,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:03:58,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:03:58,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:03:58,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:03:58,747 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:03:58,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:03:58,748 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:03:58,748 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:03:58,748 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:03:58,748 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:03:58,749 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:03:58,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:03:58,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:03:58,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:03:58,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:03:58,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:03:58,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:03:58,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:03:58,751 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:03:58,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:03:58,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:03:58,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:03:58,751 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:03:58,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:03:58,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:03:58,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:03:58,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:03:58,752 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:03:58,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:03:58,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:03:58,753 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:03:58,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:03:58,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:03:58,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:03:58,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:03:58,804 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:03:58,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-09-11 16:03:58,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf6b5a90a/6eaed28eeedc49a0830baaa4bd17903c/FLAG75624cadb [2019-09-11 16:03:59,301 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:03:59,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-09-11 16:03:59,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf6b5a90a/6eaed28eeedc49a0830baaa4bd17903c/FLAG75624cadb [2019-09-11 16:03:59,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf6b5a90a/6eaed28eeedc49a0830baaa4bd17903c [2019-09-11 16:03:59,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:03:59,736 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:03:59,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:03:59,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:03:59,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:03:59,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:03:59" (1/1) ... [2019-09-11 16:03:59,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47852f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:59, skipping insertion in model container [2019-09-11 16:03:59,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:03:59" (1/1) ... [2019-09-11 16:03:59,753 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:03:59,772 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:04:00,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:04:00,046 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:04:00,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:04:00,246 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:04:00,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:00 WrapperNode [2019-09-11 16:04:00,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:04:00,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:04:00,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:04:00,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:04:00,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:00" (1/1) ... [2019-09-11 16:04:00,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:00" (1/1) ... [2019-09-11 16:04:00,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:00" (1/1) ... [2019-09-11 16:04:00,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:00" (1/1) ... [2019-09-11 16:04:00,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:00" (1/1) ... [2019-09-11 16:04:00,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:00" (1/1) ... [2019-09-11 16:04:00,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:00" (1/1) ... [2019-09-11 16:04:00,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:04:00,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:04:00,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:04:00,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:04:00,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:00" (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 [2019-09-11 16:04:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:04:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:04:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:04:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:04:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-11 16:04:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:04:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:04:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:04:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-11 16:04:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-11 16:04:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-11 16:04:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-11 16:04:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:04:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:04:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-11 16:04:00,689 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:04:00,689 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:04:00,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:04:00 BoogieIcfgContainer [2019-09-11 16:04:00,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:04:00,691 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:04:00,692 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:04:00,692 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:04:00,693 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:04:00" (1/1) ... [2019-09-11 16:04:00,726 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:04:00,799 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-11 16:04:00,804 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 18 root evaluator evaluations with a maximum evaluation depth of 0. Performed 18 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 39 variables. [2019-09-11 16:04:00,805 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:04:00,808 INFO L168 Benchmark]: Toolchain (without parser) took 1070.75 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 89.1 MB in the beginning and 150.9 MB in the end (delta: -61.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:00,809 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 107.6 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:04:00,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.28 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 88.6 MB in the beginning and 175.1 MB in the end (delta: -86.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:00,811 INFO L168 Benchmark]: Boogie Preprocessor took 46.74 ms. Allocated memory is still 200.3 MB. Free memory was 175.1 MB in the beginning and 173.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:00,812 INFO L168 Benchmark]: RCFGBuilder took 396.06 ms. Allocated memory is still 200.3 MB. Free memory was 173.4 MB in the beginning and 156.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:00,813 INFO L168 Benchmark]: Abstract Interpretation took 113.41 ms. Allocated memory is still 200.3 MB. Free memory was 156.8 MB in the beginning and 151.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:00,817 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 107.6 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 510.28 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 88.6 MB in the beginning and 175.1 MB in the end (delta: -86.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.74 ms. Allocated memory is still 200.3 MB. Free memory was 175.1 MB in the beginning and 173.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 396.06 ms. Allocated memory is still 200.3 MB. Free memory was 173.4 MB in the beginning and 156.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 113.41 ms. Allocated memory is still 200.3 MB. Free memory was 156.8 MB in the beginning and 151.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 48]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...