/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector/gcd_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:32:49,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:32:49,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:32:49,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:32:49,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:32:49,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:32:49,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:32:49,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:32:49,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:32:49,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:32:49,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:32:49,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:32:49,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:32:49,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:32:49,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:32:49,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:32:49,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:32:49,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:32:49,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:32:49,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:32:49,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:32:49,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:32:49,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:32:49,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:32:49,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:32:49,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:32:49,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:32:49,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:32:49,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:32:49,637 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:32:49,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:32:49,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:32:49,639 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:32:49,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:32:49,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:32:49,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:32:49,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:32:49,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:32:49,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:32:49,640 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:32:49,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:32:49,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:32:49,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:32:49,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:32:49,641 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:32:49,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:32:49,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:32:49,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:32:49,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:32:49,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:32:49,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:32:49,642 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:32:49,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:32:49,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:32:49,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:32:49,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:32:49,943 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:32:49,943 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/gcd_4.c [2020-08-22 18:32:50,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e12a11e1/44d7f362e2d14992b6f33b5a2da90ddf/FLAGa2f7c03a4 [2020-08-22 18:32:50,459 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:32:50,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/gcd_4.c [2020-08-22 18:32:50,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e12a11e1/44d7f362e2d14992b6f33b5a2da90ddf/FLAGa2f7c03a4 [2020-08-22 18:32:50,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e12a11e1/44d7f362e2d14992b6f33b5a2da90ddf [2020-08-22 18:32:50,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:32:50,904 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:32:50,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:32:50,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:32:50,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:32:50,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:32:50" (1/1) ... [2020-08-22 18:32:50,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777de496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:50, skipping insertion in model container [2020-08-22 18:32:50,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:32:50" (1/1) ... [2020-08-22 18:32:50,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:32:50,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:32:51,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:32:51,100 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:32:51,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:32:51,131 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:32:51,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51 WrapperNode [2020-08-22 18:32:51,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:32:51,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:32:51,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:32:51,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:32:51,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51" (1/1) ... [2020-08-22 18:32:51,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51" (1/1) ... [2020-08-22 18:32:51,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51" (1/1) ... [2020-08-22 18:32:51,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51" (1/1) ... [2020-08-22 18:32:51,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51" (1/1) ... [2020-08-22 18:32:51,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51" (1/1) ... [2020-08-22 18:32:51,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51" (1/1) ... [2020-08-22 18:32:51,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:32:51,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:32:51,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:32:51,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:32:51,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51" (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 [2020-08-22 18:32:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:32:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:32:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 18:32:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2020-08-22 18:32:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:32:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:32:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:32:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 18:32:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2020-08-22 18:32:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:32:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:32:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:32:51,564 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:32:51,564 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 18:32:51,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:32:51 BoogieIcfgContainer [2020-08-22 18:32:51,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:32:51,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:32:51,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:32:51,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:32:51,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:32:50" (1/3) ... [2020-08-22 18:32:51,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dcd9e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:32:51, skipping insertion in model container [2020-08-22 18:32:51,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:51" (2/3) ... [2020-08-22 18:32:51,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dcd9e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:32:51, skipping insertion in model container [2020-08-22 18:32:51,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:32:51" (3/3) ... [2020-08-22 18:32:51,601 INFO L109 eAbstractionObserver]: Analyzing ICFG gcd_4.c [2020-08-22 18:32:51,610 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:32:51,617 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:32:51,630 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:32:51,651 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:32:51,652 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:32:51,652 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:32:51,652 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:32:51,652 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:32:51,652 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:32:51,652 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:32:51,653 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:32:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-08-22 18:32:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-22 18:32:51,678 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:32:51,678 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] [2020-08-22 18:32:51,679 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:32:51,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:32:51,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1031467614, now seen corresponding path program 1 times [2020-08-22 18:32:51,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:32:51,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929475335] [2020-08-22 18:32:51,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:32:51,739 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:32:51,776 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-22 18:32:51,776 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:32:51,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:32:51,795 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-22 18:32:51,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:32:51 BoogieIcfgContainer [2020-08-22 18:32:51,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:32:51,799 INFO L168 Benchmark]: Toolchain (without parser) took 894.38 ms. Allocated memory was 144.7 MB in the beginning and 200.3 MB in the end (delta: 55.6 MB). Free memory was 102.1 MB in the beginning and 151.8 MB in the end (delta: -49.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:51,800 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:32:51,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.18 ms. Allocated memory is still 144.7 MB. Free memory was 101.7 MB in the beginning and 92.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:51,803 INFO L168 Benchmark]: Boogie Preprocessor took 111.35 ms. Allocated memory was 144.7 MB in the beginning and 200.3 MB in the end (delta: 55.6 MB). Free memory was 92.2 MB in the beginning and 178.5 MB in the end (delta: -86.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:51,804 INFO L168 Benchmark]: RCFGBuilder took 338.51 ms. Allocated memory is still 200.3 MB. Free memory was 178.5 MB in the beginning and 164.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:51,805 INFO L168 Benchmark]: TraceAbstraction took 207.33 ms. Allocated memory is still 200.3 MB. Free memory was 163.7 MB in the beginning and 151.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:51,810 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 227.18 ms. Allocated memory is still 144.7 MB. Free memory was 101.7 MB in the beginning and 92.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.35 ms. Allocated memory was 144.7 MB in the beginning and 200.3 MB in the end (delta: 55.6 MB). Free memory was 92.2 MB in the beginning and 178.5 MB in the end (delta: -86.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 338.51 ms. Allocated memory is still 200.3 MB. Free memory was 178.5 MB in the beginning and 164.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207.33 ms. Allocated memory is still 200.3 MB. Free memory was 163.7 MB in the beginning and 151.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 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: 0.1s, 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...