/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:33:19,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:33:19,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:33:19,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:33:19,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:33:19,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:33:19,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:33:19,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:33:19,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:33:19,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:33:19,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:33:19,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:33:19,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:33:19,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:33:19,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:33:19,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:33:19,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:33:19,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:33:19,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:33:19,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:33:19,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:33:19,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:33:19,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:33:19,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:33:19,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:33:19,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:33:20,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:33:20,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:33:20,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:33:20,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:33:20,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:33:20,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:33:20,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:33:20,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:33:20,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:33:20,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:33:20,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:33:20,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:33:20,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:33:20,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:33:20,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:33:20,025 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:33:20,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:33:20,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:33:20,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:33:20,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:33:20,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:33:20,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:33:20,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:33:20,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:33:20,027 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:33:20,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:33:20,027 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:33:20,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:33:20,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:33:20,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:33:20,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:33:20,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:33:20,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:33:20,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:33:20,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:33:20,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:33:20,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:33:20,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:33:20,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:33:20,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:33:20,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:33:20,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:33:20,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:33:20,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:33:20,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:33:20,354 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:33:20,355 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2020-07-07 11:33:20,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8847ff7ae/2a33478ac0e94ebfb5e4b8ca02c1cfb8/FLAGbad165b7f [2020-07-07 11:33:20,918 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:33:20,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2020-07-07 11:33:20,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8847ff7ae/2a33478ac0e94ebfb5e4b8ca02c1cfb8/FLAGbad165b7f [2020-07-07 11:33:21,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8847ff7ae/2a33478ac0e94ebfb5e4b8ca02c1cfb8 [2020-07-07 11:33:21,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:33:21,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:33:21,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:33:21,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:33:21,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:33:21,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:33:21" (1/1) ... [2020-07-07 11:33:21,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8891ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21, skipping insertion in model container [2020-07-07 11:33:21,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:33:21" (1/1) ... [2020-07-07 11:33:21,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:33:21,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:33:21,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:33:21,541 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:33:21,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:33:21,574 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:33:21,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21 WrapperNode [2020-07-07 11:33:21,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:33:21,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:33:21,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:33:21,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:33:21,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21" (1/1) ... [2020-07-07 11:33:21,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21" (1/1) ... [2020-07-07 11:33:21,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21" (1/1) ... [2020-07-07 11:33:21,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21" (1/1) ... [2020-07-07 11:33:21,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21" (1/1) ... [2020-07-07 11:33:21,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21" (1/1) ... [2020-07-07 11:33:21,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21" (1/1) ... [2020-07-07 11:33:21,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:33:21,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:33:21,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:33:21,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:33:21,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21" (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 11:33:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:33:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:33:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 11:33:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:33:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:33:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-07-07 11:33:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 11:33:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:33:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:33:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:33:21,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:33:21,949 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:33:21,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:33:21 BoogieIcfgContainer [2020-07-07 11:33:21,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:33:21,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:33:21,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:33:21,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:33:21,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:33:21" (1/3) ... [2020-07-07 11:33:21,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a696658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:33:21, skipping insertion in model container [2020-07-07 11:33:21,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:21" (2/3) ... [2020-07-07 11:33:21,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a696658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:33:21, skipping insertion in model container [2020-07-07 11:33:21,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:33:21" (3/3) ... [2020-07-07 11:33:21,961 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_3-1.c [2020-07-07 11:33:21,973 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:33:21,982 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:33:21,998 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:33:22,025 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:33:22,025 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:33:22,025 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:33:22,025 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:33:22,026 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:33:22,026 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:33:22,026 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:33:22,026 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:33:22,045 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-07 11:33:22,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-07 11:33:22,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:22,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:22,054 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:33:22,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:22,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2020-07-07 11:33:22,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:22,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612907264] [2020-07-07 11:33:22,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:33:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:33:22,257 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 11:33:22,258 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 11:33:22,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:33:22,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:33:22 BoogieIcfgContainer [2020-07-07 11:33:22,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:33:22,286 INFO L168 Benchmark]: Toolchain (without parser) took 984.12 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 155.3 MB in the end (delta: -53.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:22,287 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 11:33:22,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.98 ms. Allocated memory is still 144.7 MB. Free memory was 101.6 MB in the beginning and 92.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:22,289 INFO L168 Benchmark]: Boogie Preprocessor took 27.69 ms. Allocated memory is still 144.7 MB. Free memory was 92.2 MB in the beginning and 90.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:22,291 INFO L168 Benchmark]: RCFGBuilder took 349.19 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 90.8 MB in the beginning and 169.9 MB in the end (delta: -79.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:22,292 INFO L168 Benchmark]: TraceAbstraction took 328.24 ms. Allocated memory is still 201.3 MB. Free memory was 169.3 MB in the beginning and 155.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:22,296 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 273.98 ms. Allocated memory is still 144.7 MB. Free memory was 101.6 MB in the beginning and 92.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.69 ms. Allocated memory is still 144.7 MB. Free memory was 92.2 MB in the beginning and 90.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 349.19 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 90.8 MB in the beginning and 169.9 MB in the end (delta: -79.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 328.24 ms. Allocated memory is still 201.3 MB. Free memory was 169.3 MB in the beginning and 155.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] unsigned int x = 0; [L13] unsigned short N = __VERIFIER_nondet_ushort(); [L15] COND FALSE !(x < N) VAL [N=0, x=0] [L19] CALL __VERIFIER_assert(x % 2) VAL [\old(cond)=0] [L5] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 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=17occurred 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, 10 NumberOfCodeBlocks, 10 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...