/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/trex03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 15:26:59,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 15:26:59,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 15:26:59,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 15:26:59,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 15:26:59,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 15:26:59,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 15:26:59,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 15:26:59,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 15:26:59,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 15:26:59,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 15:26:59,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 15:26:59,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 15:26:59,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 15:26:59,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 15:26:59,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 15:26:59,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 15:26:59,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 15:26:59,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 15:26:59,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 15:26:59,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 15:26:59,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 15:26:59,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 15:26:59,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 15:26:59,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 15:26:59,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 15:26:59,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 15:26:59,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 15:26:59,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 15:26:59,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 15:26:59,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 15:26:59,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 15:26:59,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 15:26:59,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 15:26:59,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 15:26:59,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 15:26:59,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 15:26:59,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 15:26:59,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 15:26:59,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 15:26:59,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 15:26:59,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 15:26:59,560 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 15:26:59,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 15:26:59,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 15:26:59,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 15:26:59,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 15:26:59,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 15:26:59,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 15:26:59,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 15:26:59,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 15:26:59,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 15:26:59,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 15:26:59,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 15:26:59,564 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 15:26:59,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 15:26:59,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 15:26:59,564 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 15:26:59,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 15:26:59,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 15:26:59,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 15:26:59,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 15:26:59,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 15:26:59,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 15:26:59,566 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 [2020-07-07 15:26:59,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 15:26:59,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 15:26:59,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 15:26:59,889 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 15:26:59,890 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 15:26:59,893 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-1.c [2020-07-07 15:26:59,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d9cc73fb/88f2122858bf48e7afedc1af8139837f/FLAG4d1f944b0 [2020-07-07 15:27:00,392 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 15:27:00,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-1.c [2020-07-07 15:27:00,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d9cc73fb/88f2122858bf48e7afedc1af8139837f/FLAG4d1f944b0 [2020-07-07 15:27:00,793 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d9cc73fb/88f2122858bf48e7afedc1af8139837f [2020-07-07 15:27:00,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 15:27:00,804 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 15:27:00,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 15:27:00,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 15:27:00,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 15:27:00,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:27:00" (1/1) ... [2020-07-07 15:27:00,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbc0375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:00, skipping insertion in model container [2020-07-07 15:27:00,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:27:00" (1/1) ... [2020-07-07 15:27:00,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 15:27:00,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 15:27:01,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:27:01,013 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 15:27:01,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:27:01,044 INFO L208 MainTranslator]: Completed translation [2020-07-07 15:27:01,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01 WrapperNode [2020-07-07 15:27:01,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 15:27:01,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 15:27:01,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 15:27:01,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 15:27:01,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01" (1/1) ... [2020-07-07 15:27:01,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01" (1/1) ... [2020-07-07 15:27:01,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01" (1/1) ... [2020-07-07 15:27:01,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01" (1/1) ... [2020-07-07 15:27:01,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01" (1/1) ... [2020-07-07 15:27:01,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01" (1/1) ... [2020-07-07 15:27:01,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01" (1/1) ... [2020-07-07 15:27:01,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 15:27:01,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 15:27:01,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 15:27:01,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 15:27:01,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01" (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 [2020-07-07 15:27:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 15:27:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 15:27:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 15:27:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 15:27:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 15:27:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 15:27:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-07 15:27:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-07 15:27:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 15:27:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 15:27:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 15:27:01,450 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 15:27:01,450 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 15:27:01,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:27:01 BoogieIcfgContainer [2020-07-07 15:27:01,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 15:27:01,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 15:27:01,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 15:27:01,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 15:27:01,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 03:27:00" (1/3) ... [2020-07-07 15:27:01,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5414ab87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:27:01, skipping insertion in model container [2020-07-07 15:27:01,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:27:01" (2/3) ... [2020-07-07 15:27:01,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5414ab87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:27:01, skipping insertion in model container [2020-07-07 15:27:01,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:27:01" (3/3) ... [2020-07-07 15:27:01,466 INFO L109 eAbstractionObserver]: Analyzing ICFG trex03-1.c [2020-07-07 15:27:01,476 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 15:27:01,483 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 15:27:01,500 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 15:27:01,524 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 15:27:01,524 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 15:27:01,524 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-07 15:27:01,524 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 15:27:01,524 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 15:27:01,525 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 15:27:01,525 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 15:27:01,525 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 15:27:01,542 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-07-07 15:27:01,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-07 15:27:01,559 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 15:27:01,560 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] [2020-07-07 15:27:01,561 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 15:27:01,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 15:27:01,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1978237477, now seen corresponding path program 1 times [2020-07-07 15:27:01,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 15:27:01,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240261618] [2020-07-07 15:27:01,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 15:27:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:27:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:27:01,646 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 15:27:01,647 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 15:27:01,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 03:27:01 BoogieIcfgContainer [2020-07-07 15:27:01,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 15:27:01,681 INFO L168 Benchmark]: Toolchain (without parser) took 875.92 ms. Allocated memory was 134.2 MB in the beginning and 197.7 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 149.9 MB in the end (delta: -50.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-07-07 15:27:01,682 INFO L168 Benchmark]: CDTParser took 1.56 ms. Allocated memory is still 134.2 MB. Free memory was 117.7 MB in the beginning and 117.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 15:27:01,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.39 ms. Allocated memory is still 134.2 MB. Free memory was 99.2 MB in the beginning and 89.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-07 15:27:01,684 INFO L168 Benchmark]: Boogie Preprocessor took 105.36 ms. Allocated memory was 134.2 MB in the beginning and 197.7 MB in the end (delta: 63.4 MB). Free memory was 89.6 MB in the beginning and 176.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-07-07 15:27:01,685 INFO L168 Benchmark]: RCFGBuilder took 305.02 ms. Allocated memory is still 197.7 MB. Free memory was 176.7 MB in the beginning and 162.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-07 15:27:01,686 INFO L168 Benchmark]: TraceAbstraction took 221.56 ms. Allocated memory is still 197.7 MB. Free memory was 161.6 MB in the beginning and 149.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-07-07 15:27:01,691 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.56 ms. Allocated memory is still 134.2 MB. Free memory was 117.7 MB in the beginning and 117.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.39 ms. Allocated memory is still 134.2 MB. Free memory was 99.2 MB in the beginning and 89.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.36 ms. Allocated memory was 134.2 MB in the beginning and 197.7 MB in the end (delta: 63.4 MB). Free memory was 89.6 MB in the beginning and 176.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 305.02 ms. Allocated memory is still 197.7 MB. Free memory was 176.7 MB in the beginning and 162.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221.56 ms. Allocated memory is still 197.7 MB. Free memory was 161.6 MB in the beginning and 149.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 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: [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); VAL [__VERIFIER_nondet_uint()=-4294967295, x1=-4294967295] [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); VAL [__VERIFIER_nondet_uint()=4294967296, x1=-4294967295, x2=4294967296] [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); VAL [__VERIFIER_nondet_uint()=4294967297, x1=-4294967295, x2=4294967296, x3=4294967297] [L16] unsigned int d1=1, d2=1, d3=1; VAL [d1=1, d2=1, d3=1, x1=-4294967295, x2=4294967296, x3=4294967297] [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); VAL [__VERIFIER_nondet_bool()=2, c1=2, d1=1, d2=1, d3=1, x1=-4294967295, x2=4294967296, x3=4294967297] [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); VAL [__VERIFIER_nondet_bool()=3, c1=2, c2=3, d1=1, d2=1, d3=1, x1=-4294967295, x2=4294967296, x3=4294967297] [L19] COND FALSE !(x1>0 && x2>0 && x3>0) VAL [c1=2, c2=3, d1=1, d2=1, d3=1, x1=-4294967295, x2=4294967296, x3=4294967297] [L28] CALL __VERIFIER_assert(x1==0 && x2==0 && x3==0) 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 4 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, 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=39occurred 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, 22 NumberOfCodeBlocks, 22 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...