/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/ldv-regression/test26-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 22:19:36,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:19:36,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:19:36,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 22:19:36,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 22:19:36,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 22:19:36,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 22:19:36,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 22:19:36,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 22:19:36,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 22:19:36,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 22:19:36,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 22:19:36,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:19:36,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:19:36,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:19:36,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:19:36,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:19:36,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:19:36,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:19:36,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:19:36,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:19:36,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:19:36,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:19:36,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:19:36,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 22:19:36,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:19:36,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:19:36,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:19:36,490 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 22:19:36,501 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:19:36,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:19:36,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:19:36,503 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:19:36,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:19:36,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:19:36,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:19:36,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:19:36,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:19:36,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:19:36,504 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:19:36,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:19:36,504 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:19:36,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:19:36,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:19:36,505 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:19:36,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:19:36,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:19:36,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:19:36,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:19:36,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:19:36,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:19:36,506 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 [2020-08-22 22:19:36,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:19:36,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:19:36,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:19:36,880 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:19:36,880 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:19:36,881 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test26-2.c [2020-08-22 22:19:36,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78394d8f1/962e657a2bbc4b5fb5ed3be410aed9bd/FLAG45f85597d [2020-08-22 22:19:37,405 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:19:37,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test26-2.c [2020-08-22 22:19:37,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78394d8f1/962e657a2bbc4b5fb5ed3be410aed9bd/FLAG45f85597d [2020-08-22 22:19:37,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78394d8f1/962e657a2bbc4b5fb5ed3be410aed9bd [2020-08-22 22:19:37,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:19:37,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:19:37,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:19:37,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:19:37,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:19:37,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:19:37" (1/1) ... [2020-08-22 22:19:37,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b666dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:37, skipping insertion in model container [2020-08-22 22:19:37,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:19:37" (1/1) ... [2020-08-22 22:19:37,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:19:37,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:19:38,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:19:38,031 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:19:38,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:19:38,066 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:19:38,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38 WrapperNode [2020-08-22 22:19:38,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:19:38,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:19:38,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:19:38,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:19:38,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38" (1/1) ... [2020-08-22 22:19:38,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38" (1/1) ... [2020-08-22 22:19:38,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38" (1/1) ... [2020-08-22 22:19:38,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38" (1/1) ... [2020-08-22 22:19:38,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38" (1/1) ... [2020-08-22 22:19:38,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38" (1/1) ... [2020-08-22 22:19:38,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38" (1/1) ... [2020-08-22 22:19:38,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:19:38,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:19:38,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:19:38,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:19:38,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38" (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 22:19:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:19:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:19:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-08-22 22:19:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:19:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:19:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-08-22 22:19:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 22:19:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 22:19:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:19:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:19:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 22:19:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 22:19:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:19:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 22:19:38,514 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:19:38,514 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 22:19:38,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:19:38 BoogieIcfgContainer [2020-08-22 22:19:38,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:19:38,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:19:38,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:19:38,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:19:38,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:19:37" (1/3) ... [2020-08-22 22:19:38,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d11ece3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:19:38, skipping insertion in model container [2020-08-22 22:19:38,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:38" (2/3) ... [2020-08-22 22:19:38,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d11ece3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:19:38, skipping insertion in model container [2020-08-22 22:19:38,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:19:38" (3/3) ... [2020-08-22 22:19:38,549 INFO L109 eAbstractionObserver]: Analyzing ICFG test26-2.c [2020-08-22 22:19:38,577 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:19:38,586 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 22:19:38,601 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 22:19:38,629 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:19:38,629 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:19:38,629 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:19:38,629 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:19:38,630 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:19:38,630 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:19:38,630 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:19:38,630 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:19:38,651 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-08-22 22:19:38,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-22 22:19:38,664 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:19:38,665 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 22:19:38,665 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:19:38,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:19:38,670 INFO L82 PathProgramCache]: Analyzing trace with hash 584275181, now seen corresponding path program 1 times [2020-08-22 22:19:38,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:19:38,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736097345] [2020-08-22 22:19:38,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:19:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 22:19:38,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 22:19:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 22:19:38,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 22:19:38,862 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 22:19:38,862 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 22:19:38,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:19:38,887 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 9 could not be translated for associated CType STRUCT~~dummy?a~INT?b~INT# [2020-08-22 22:19:38,888 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 11 could not be translated for associated CType STRUCT~~dummy?a~INT?b~INT# [2020-08-22 22:19:38,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 10:19:38 BoogieIcfgContainer [2020-08-22 22:19:38,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 22:19:38,905 INFO L168 Benchmark]: Toolchain (without parser) took 1111.89 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 102.8 MB in the beginning and 149.8 MB in the end (delta: -47.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:38,906 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 22:19:38,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.16 ms. Allocated memory is still 145.8 MB. Free memory was 102.8 MB in the beginning and 92.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:38,908 INFO L168 Benchmark]: Boogie Preprocessor took 137.98 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 92.8 MB in the beginning and 180.2 MB in the end (delta: -87.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:38,909 INFO L168 Benchmark]: RCFGBuilder took 318.62 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 165.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:38,910 INFO L168 Benchmark]: TraceAbstraction took 371.40 ms. Allocated memory is still 202.9 MB. Free memory was 165.5 MB in the beginning and 149.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:38,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.16 ms. Allocated memory is still 145.8 MB. Free memory was 102.8 MB in the beginning and 92.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.98 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 92.8 MB in the beginning and 180.2 MB in the end (delta: -87.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 318.62 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 165.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 371.40 ms. Allocated memory is still 202.9 MB. Free memory was 165.5 MB in the beginning and 149.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 9 could not be translated for associated CType STRUCT~~dummy?a~INT?b~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 11 could not be translated for associated CType STRUCT~~dummy?a~INT?b~INT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3-L5] struct dummy { int a, b; } global = {0, 1}; VAL [\old(global)=null, \old(global)=null, global={2:0}] [L14] struct dummy *pd = &global; VAL [global={2:0}, pd={2:0}] [L16] CALL assign(&pd->b, &pd->b) VAL [global={2:0}, pa={2:4}, pb={2:4}] [L9] EXPR \read(*pb) VAL [\read(*pb)=1, global={2:0}, pa={2:4}, pa={2:4}, pb={2:4}, pb={2:4}] [L9] *pa = *pb VAL [\read(*pb)=1, global={2:0}, pa={2:4}, pa={2:4}, pb={2:4}, pb={2:4}] [L16] RET assign(&pd->b, &pd->b) VAL [global={2:0}, pd={2:0}] [L18] EXPR pd->a VAL [global={2:0}, pd={2:0}, pd->a=0] [L18] EXPR global.b VAL [global={2:0}, global.b=1, pd={2:0}, pd->a=0] [L18] COND TRUE pd->a != global.b VAL [global={2:0}, global.b=1, pd={2:0}, pd->a=0] [L24] __VERIFIER_error() VAL [global={2:0}, pd={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, 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=34occurred 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 proved your program to be incorrect! Received shutdown request...