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/nla-digbench/cohendiv.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:47:56,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:56,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:56,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:47:56,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:47:56,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:47:56,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:47:56,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:47:56,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:47:56,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:47:56,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:47:56,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:47:56,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:47:56,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:47:56,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:47:56,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:47:56,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:47:56,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:47:56,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:47:56,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:47:56,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:47:56,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:47:56,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:47:56,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:47:56,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:47:56,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:47:56,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:47:56,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:47:56,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:47:56,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:47:56,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:47:56,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:47:56,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:47:56,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:47:56,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:47:56,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:47:56,624 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 [2019-09-20 13:47:56,651 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:56,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:56,652 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:56,652 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:56,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:56,653 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:56,653 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:56,653 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:56,654 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:56,654 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:56,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:56,656 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:56,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:56,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:56,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:56,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:56,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:56,658 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:56,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:56,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:56,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:56,659 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:56,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:56,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:56,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:56,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:56,660 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:56,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:56,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:56,660 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:56,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:56,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:56,720 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:56,722 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:56,722 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:56,723 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-09-20 13:47:56,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba8f65d6/6d5f9c469fb94897b06b674ab9388acd/FLAG8c3e8e3b9 [2019-09-20 13:47:57,230 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:57,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-09-20 13:47:57,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba8f65d6/6d5f9c469fb94897b06b674ab9388acd/FLAG8c3e8e3b9 [2019-09-20 13:47:57,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba8f65d6/6d5f9c469fb94897b06b674ab9388acd [2019-09-20 13:47:57,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:57,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:57,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:57,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:57,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:57,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3ca3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57, skipping insertion in model container [2019-09-20 13:47:57,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,673 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:57,693 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:57,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:57,954 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:57,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:58,006 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:58,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58 WrapperNode [2019-09-20 13:47:58,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:58,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:58,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:58,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:58,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:58,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:58,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:58,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:58,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (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 [2019-09-20 13:47:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:47:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:47:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:58,471 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:58,472 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-20 13:47:58,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:58 BoogieIcfgContainer [2019-09-20 13:47:58,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:58,478 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:58,479 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:58,479 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:58,480 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,529 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:58,696 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:47:58,720 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 6. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 9 variables. [2019-09-20 13:47:58,721 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:47:58,724 INFO L168 Benchmark]: Toolchain (without parser) took 1067.52 ms. Allocated memory was 130.5 MB in the beginning and 199.8 MB in the end (delta: 69.2 MB). Free memory was 84.7 MB in the beginning and 154.8 MB in the end (delta: -70.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:47:58,724 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 130.5 MB. Free memory is still 103.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:47:58,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.89 ms. Allocated memory is still 130.5 MB. Free memory was 84.3 MB in the beginning and 74.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:58,727 INFO L168 Benchmark]: Boogie Preprocessor took 180.38 ms. Allocated memory was 130.5 MB in the beginning and 199.8 MB in the end (delta: 69.2 MB). Free memory was 74.7 MB in the beginning and 175.1 MB in the end (delta: -100.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:58,728 INFO L168 Benchmark]: RCFGBuilder took 288.36 ms. Allocated memory is still 199.8 MB. Free memory was 175.1 MB in the beginning and 162.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:58,729 INFO L168 Benchmark]: Abstract Interpretation took 242.38 ms. Allocated memory is still 199.8 MB. Free memory was 162.2 MB in the beginning and 154.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:58,732 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 130.5 MB. Free memory is still 103.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 351.89 ms. Allocated memory is still 130.5 MB. Free memory was 84.3 MB in the beginning and 74.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 180.38 ms. Allocated memory was 130.5 MB in the beginning and 199.8 MB in the end (delta: 69.2 MB). Free memory was 74.7 MB in the beginning and 175.1 MB in the end (delta: -100.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 288.36 ms. Allocated memory is still 199.8 MB. Free memory was 175.1 MB in the beginning and 162.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 242.38 ms. Allocated memory is still 199.8 MB. Free memory was 162.2 MB in the beginning and 154.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L18] int x, y, q, r, a, b; [L20] x = __VERIFIER_nondet_int() [L21] y = __VERIFIER_nondet_int() [L25] q = 0 [L26] r = x [L27] a = 0 [L28] b = 0 [L30] COND TRUE 1 [L31] CALL __VERIFIER_assert(b == y*a) [L10] COND TRUE !(cond) [L12] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...