/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector/gcd_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:37:20,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:37:20,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:37:20,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 21:37:20,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 21:37:20,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 21:37:20,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 21:37:20,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 21:37:20,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 21:37:20,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 21:37:20,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 21:37:20,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 21:37:20,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:37:20,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:37:20,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:37:20,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:37:20,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:37:20,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:37:20,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:37:20,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:37:20,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:37:20,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:37:20,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:37:20,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:37:20,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 21:37:20,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 21:37:20,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 21:37:20,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 21:37:20,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 21:37:20,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 21:37:20,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 21:37:20,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 21:37:20,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 21:37:20,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:37:20,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:37:20,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:37:20,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 21:37:20,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:37:20,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:37:20,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:37:20,797 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:37:20,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:37:20,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:37:20,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:37:20,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:37:20,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:37:20,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:37:20,798 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:37:20,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:37:20,799 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:37:20,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:37:20,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:37:20,799 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:37:20,800 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:37:20,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:37:20,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:37:20,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:37:20,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:37:20,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:37:20,801 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 21:37:21,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:37:21,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:37:21,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:37:21,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:37:21,274 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:37:21,275 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/gcd_4.c [2020-09-04 21:37:21,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bf1f0157/d8bbfe5e66fa4a1397d087563999d34c/FLAG170e42e96 [2020-09-04 21:37:21,887 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:37:21,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/gcd_4.c [2020-09-04 21:37:21,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bf1f0157/d8bbfe5e66fa4a1397d087563999d34c/FLAG170e42e96 [2020-09-04 21:37:22,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bf1f0157/d8bbfe5e66fa4a1397d087563999d34c [2020-09-04 21:37:22,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:37:22,252 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:37:22,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:22,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:37:22,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:37:22,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:22" (1/1) ... [2020-09-04 21:37:22,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e09f978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22, skipping insertion in model container [2020-09-04 21:37:22,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:22" (1/1) ... [2020-09-04 21:37:22,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:37:22,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:37:22,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:22,526 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:37:22,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:22,560 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:37:22,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22 WrapperNode [2020-09-04 21:37:22,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:22,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:37:22,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:37:22,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:37:22,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22" (1/1) ... [2020-09-04 21:37:22,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22" (1/1) ... [2020-09-04 21:37:22,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22" (1/1) ... [2020-09-04 21:37:22,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22" (1/1) ... [2020-09-04 21:37:22,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22" (1/1) ... [2020-09-04 21:37:22,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22" (1/1) ... [2020-09-04 21:37:22,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22" (1/1) ... [2020-09-04 21:37:22,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:37:22,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:37:22,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:37:22,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:37:22,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 21:37:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:37:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:37:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 21:37:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2020-09-04 21:37:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:37:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:37:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 21:37:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 21:37:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2020-09-04 21:37:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:37:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:37:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:37:22,989 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:37:22,989 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 21:37:22,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:22 BoogieIcfgContainer [2020-09-04 21:37:22,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:37:22,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:37:22,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:37:23,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:37:23,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:37:22" (1/3) ... [2020-09-04 21:37:23,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c52410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:23, skipping insertion in model container [2020-09-04 21:37:23,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:22" (2/3) ... [2020-09-04 21:37:23,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c52410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:23, skipping insertion in model container [2020-09-04 21:37:23,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:22" (3/3) ... [2020-09-04 21:37:23,005 INFO L109 eAbstractionObserver]: Analyzing ICFG gcd_4.c [2020-09-04 21:37:23,016 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:37:23,027 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:37:23,055 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:37:23,087 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:37:23,088 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:37:23,088 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:37:23,088 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:37:23,089 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:37:23,089 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:37:23,089 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:37:23,089 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:37:23,115 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-09-04 21:37:23,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-04 21:37:23,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:23,131 INFO L422 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] [2020-09-04 21:37:23,131 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:23,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:23,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1031467614, now seen corresponding path program 1 times [2020-09-04 21:37:23,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:23,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149486153] [2020-09-04 21:37:23,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:23,283 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-04 21:37:23,283 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-04 21:37:23,284 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 21:37:23,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:37:23,307 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-04 21:37:23,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:37:23 BoogieIcfgContainer [2020-09-04 21:37:23,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:37:23,311 INFO L168 Benchmark]: Toolchain (without parser) took 1058.25 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 102.6 MB in the beginning and 154.0 MB in the end (delta: -51.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:23,312 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-04 21:37:23,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.18 ms. Allocated memory is still 138.4 MB. Free memory was 102.4 MB in the beginning and 92.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:23,315 INFO L168 Benchmark]: Boogie Preprocessor took 108.19 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 92.8 MB in the beginning and 181.3 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:23,315 INFO L168 Benchmark]: RCFGBuilder took 325.53 ms. Allocated memory is still 201.3 MB. Free memory was 180.3 MB in the beginning and 165.5 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:23,316 INFO L168 Benchmark]: TraceAbstraction took 311.18 ms. Allocated memory is still 201.3 MB. Free memory was 165.5 MB in the beginning and 154.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:23,321 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 308.18 ms. Allocated memory is still 138.4 MB. Free memory was 102.4 MB in the beginning and 92.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.19 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 92.8 MB in the beginning and 181.3 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 325.53 ms. Allocated memory is still 201.3 MB. Free memory was 180.3 MB in the beginning and 165.5 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 311.18 ms. Allocated memory is still 201.3 MB. Free memory was 165.5 MB in the beginning and 154.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L32] long x; [L33] long y; [L34] long g; [L36] x = 63 [L37] y = 18 [L39] CALL, EXPR gcd_test(x, y) [L12] COND FALSE !(a < 0) [L13] COND FALSE !(b < 0) [L15] COND TRUE a == 0 [L16] return b; [L39] RET, EXPR gcd_test(x, y) [L39] g = gcd_test(x, y) [L41] CALL __VERIFIER_assert(x % g == 0) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, 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...