/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/loops/trex01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 23:01:41,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 23:01:41,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 23:01:41,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 23:01:41,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 23:01:41,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 23:01:41,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 23:01:41,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 23:01:41,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 23:01:41,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 23:01:41,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 23:01:41,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 23:01:41,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 23:01:41,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 23:01:41,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 23:01:41,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 23:01:41,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 23:01:41,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 23:01:41,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 23:01:41,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 23:01:41,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 23:01:41,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 23:01:41,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 23:01:41,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 23:01:41,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 23:01:41,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 23:01:41,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 23:01:41,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 23:01:41,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 23:01:41,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 23:01:41,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 23:01:41,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 23:01:41,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 23:01:41,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 23:01:41,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 23:01:41,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 23:01:41,489 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 23:01:41,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 23:01:41,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 23:01:41,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 23:01:41,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 23:01:41,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 23:01:41,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 23:01:41,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 23:01:41,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 23:01:41,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 23:01:41,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 23:01:41,502 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 23:01:41,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 23:01:41,503 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 23:01:41,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 23:01:41,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 23:01:41,503 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 23:01:41,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 23:01:41,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 23:01:41,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 23:01:41,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 23:01:41,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 23:01:41,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 23:01:41,505 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 23:01:41,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 23:01:41,835 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 23:01:41,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 23:01:41,841 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 23:01:41,841 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 23:01:41,842 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01-1.c [2020-08-22 23:01:41,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79ec556c/5b9f03e996de42aa903694d14f470eaf/FLAGe745ad5fd [2020-08-22 23:01:42,426 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 23:01:42,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01-1.c [2020-08-22 23:01:42,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79ec556c/5b9f03e996de42aa903694d14f470eaf/FLAGe745ad5fd [2020-08-22 23:01:42,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79ec556c/5b9f03e996de42aa903694d14f470eaf [2020-08-22 23:01:42,749 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 23:01:42,751 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 23:01:42,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 23:01:42,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 23:01:42,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 23:01:42,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 11:01:42" (1/1) ... [2020-08-22 23:01:42,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:42, skipping insertion in model container [2020-08-22 23:01:42,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 11:01:42" (1/1) ... [2020-08-22 23:01:42,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 23:01:42,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 23:01:43,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 23:01:43,006 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 23:01:43,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 23:01:43,042 INFO L208 MainTranslator]: Completed translation [2020-08-22 23:01:43,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43 WrapperNode [2020-08-22 23:01:43,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 23:01:43,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 23:01:43,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 23:01:43,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 23:01:43,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43" (1/1) ... [2020-08-22 23:01:43,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43" (1/1) ... [2020-08-22 23:01:43,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43" (1/1) ... [2020-08-22 23:01:43,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43" (1/1) ... [2020-08-22 23:01:43,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43" (1/1) ... [2020-08-22 23:01:43,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43" (1/1) ... [2020-08-22 23:01:43,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43" (1/1) ... [2020-08-22 23:01:43,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 23:01:43,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 23:01:43,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 23:01:43,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 23:01:43,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43" (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 23:01:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 23:01:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 23:01:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 23:01:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-08-22 23:01:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 23:01:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 23:01:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 23:01:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-22 23:01:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 23:01:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-08-22 23:01:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 23:01:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 23:01:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 23:01:43,511 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 23:01:43,511 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 23:01:43,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:01:43 BoogieIcfgContainer [2020-08-22 23:01:43,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 23:01:43,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 23:01:43,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 23:01:43,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 23:01:43,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 11:01:42" (1/3) ... [2020-08-22 23:01:43,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67baf0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:01:43, skipping insertion in model container [2020-08-22 23:01:43,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:43" (2/3) ... [2020-08-22 23:01:43,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67baf0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:01:43, skipping insertion in model container [2020-08-22 23:01:43,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:01:43" (3/3) ... [2020-08-22 23:01:43,555 INFO L109 eAbstractionObserver]: Analyzing ICFG trex01-1.c [2020-08-22 23:01:43,590 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 23:01:43,608 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 23:01:43,638 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 23:01:43,669 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 23:01:43,670 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 23:01:43,671 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 23:01:43,671 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 23:01:43,671 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 23:01:43,671 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 23:01:43,673 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 23:01:43,674 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 23:01:43,691 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-08-22 23:01:43,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-22 23:01:43,704 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:01:43,705 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 23:01:43,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:01:43,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:01:43,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1256366237, now seen corresponding path program 1 times [2020-08-22 23:01:43,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:01:43,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119261639] [2020-08-22 23:01:43,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:01:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 23:01:43,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 23:01:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 23:01:43,855 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 23:01:43,873 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 23:01:43,874 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 23:01:43,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 23:01:43,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 11:01:43 BoogieIcfgContainer [2020-08-22 23:01:43,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 23:01:43,907 INFO L168 Benchmark]: Toolchain (without parser) took 1154.83 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 102.9 MB in the beginning and 151.1 MB in the end (delta: -48.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:43,909 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 23:01:43,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.51 ms. Allocated memory is still 145.2 MB. Free memory was 102.7 MB in the beginning and 93.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:43,911 INFO L168 Benchmark]: Boogie Preprocessor took 126.30 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 93.1 MB in the beginning and 180.0 MB in the end (delta: -86.9 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:43,912 INFO L168 Benchmark]: RCFGBuilder took 355.90 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 164.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:43,913 INFO L168 Benchmark]: TraceAbstraction took 373.39 ms. Allocated memory is still 201.3 MB. Free memory was 164.0 MB in the beginning and 151.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:43,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 291.51 ms. Allocated memory is still 145.2 MB. Free memory was 102.7 MB in the beginning and 93.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.30 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 93.1 MB in the beginning and 180.0 MB in the end (delta: -86.9 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.90 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 164.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 373.39 ms. Allocated memory is still 201.3 MB. Free memory was 164.0 MB in the beginning and 151.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L34] _Bool c = __VERIFIER_nondet_bool(); VAL [__VERIFIER_nondet_bool()=1, c=1] [L35] COND TRUE \read(c) VAL [c=1] [L36] CALL f(1) VAL [\old(d)=1] [L13] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; VAL [\old(d)=1, __VERIFIER_nondet_int()=0, d=1, x=0] [L13] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; VAL [\old(d)=1, __VERIFIER_nondet_int()=0, d=1, x=0, y=0] [L13] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; VAL [\old(d)=1, __VERIFIER_nondet_int()=0, d=1, k=0, x=0, y=0] [L13] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; VAL [\old(d)=1, d=1, k=0, x=0, y=0, z=1] [L14] COND FALSE !(!(k <= 1073741823)) VAL [\old(d)=1, d=1, k=0, x=0, y=0, z=1] [L17] COND FALSE !(z < k) VAL [\old(d)=1, d=1, k=0, x=0, y=0, z=1] [L18] CALL __VERIFIER_assert(z>=2) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 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=46occurred 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...