/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/loops/count_up_down-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:44:55,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:44:55,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:44:55,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:44:55,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:44:55,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:44:55,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:44:55,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:44:55,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:44:55,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:44:55,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:44:55,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:44:55,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:44:55,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:44:55,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:44:55,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:44:55,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:44:55,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:44:55,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:44:55,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:44:55,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:44:55,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:44:55,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:44:55,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:44:55,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 22:44:55,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:44:55,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:44:55,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:44:55,162 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 [2020-11-06 22:44:55,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:44:55,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:44:55,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:44:55,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:44:55,209 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:44:55,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:44:55,210 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:44:55,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:44:55,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:44:55,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:44:55,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:44:55,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:44:55,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:44:55,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:44:55,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:44:55,212 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:44:55,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:44:55,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:44:55,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:44:55,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:44:55,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:44:55,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:44:55,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:44:55,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:44:55,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:44:55,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:44:55,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:44:55,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:44:55,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:44:55,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:44:55,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:44:55,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:44:55,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:44:55,606 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:44:55,607 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:44:55,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/count_up_down-2.c [2020-11-06 22:44:55,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48dcd5075/cd79b37527ca4792baba481ccd426a0b/FLAG9138a249f [2020-11-06 22:44:56,351 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:44:56,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down-2.c [2020-11-06 22:44:56,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48dcd5075/cd79b37527ca4792baba481ccd426a0b/FLAG9138a249f [2020-11-06 22:44:56,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48dcd5075/cd79b37527ca4792baba481ccd426a0b [2020-11-06 22:44:56,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:44:56,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:44:56,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:44:56,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:44:56,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:44:56,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:56" (1/1) ... [2020-11-06 22:44:56,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5fe967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56, skipping insertion in model container [2020-11-06 22:44:56,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:56" (1/1) ... [2020-11-06 22:44:56,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:44:56,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:44:56,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:44:56,959 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:44:56,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:44:56,993 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:44:56,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56 WrapperNode [2020-11-06 22:44:56,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:44:56,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:44:56,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:44:56,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:44:57,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2020-11-06 22:44:57,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2020-11-06 22:44:57,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2020-11-06 22:44:57,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2020-11-06 22:44:57,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2020-11-06 22:44:57,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2020-11-06 22:44:57,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2020-11-06 22:44:57,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:44:57,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:44:57,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:44:57,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:44:57,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (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 [2020-11-06 22:44:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:44:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:44:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:44:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-06 22:44:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:44:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:44:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:44:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:44:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:44:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-06 22:44:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-11-06 22:44:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:44:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:44:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:44:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:44:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:44:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:44:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:44:57,504 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:44:57,504 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:44:57,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:57 BoogieIcfgContainer [2020-11-06 22:44:57,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:44:57,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:44:57,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:44:57,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:44:57,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:56" (1/3) ... [2020-11-06 22:44:57,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8b2db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:57, skipping insertion in model container [2020-11-06 22:44:57,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (2/3) ... [2020-11-06 22:44:57,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8b2db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:57, skipping insertion in model container [2020-11-06 22:44:57,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:57" (3/3) ... [2020-11-06 22:44:57,521 INFO L111 eAbstractionObserver]: Analyzing ICFG count_up_down-2.c [2020-11-06 22:44:57,538 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:44:57,542 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:44:57,556 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:44:57,601 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:44:57,602 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:44:57,602 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:44:57,602 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:44:57,602 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:44:57,603 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:44:57,603 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:44:57,603 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:44:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-06 22:44:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-06 22:44:57,637 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:44:57,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:44:57,639 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:44:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:44:57,647 INFO L82 PathProgramCache]: Analyzing trace with hash 671356177, now seen corresponding path program 1 times [2020-11-06 22:44:57,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:44:57,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347664253] [2020-11-06 22:44:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:44:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:44:57,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:44:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:44:57,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:44:57,923 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 22:44:57,924 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 22:44:57,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:44:57,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:44:57 BoogieIcfgContainer [2020-11-06 22:44:57,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:44:57,959 INFO L168 Benchmark]: Toolchain (without parser) took 1212.68 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 131.3 MB in the end (delta: -3.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:44:57,961 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 81.1 MB in the beginning and 80.7 MB in the end (delta: 361.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:44:57,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.27 ms. Allocated memory is still 154.1 MB. Free memory was 127.6 MB in the beginning and 118.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:57,963 INFO L168 Benchmark]: Boogie Preprocessor took 36.33 ms. Allocated memory is still 154.1 MB. Free memory was 118.4 MB in the beginning and 116.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:57,964 INFO L168 Benchmark]: RCFGBuilder took 474.39 ms. Allocated memory is still 154.1 MB. Free memory was 116.9 MB in the beginning and 104.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:57,965 INFO L168 Benchmark]: TraceAbstraction took 444.59 ms. Allocated memory is still 154.1 MB. Free memory was 104.3 MB in the beginning and 131.3 MB in the end (delta: -27.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:44:57,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 81.1 MB in the beginning and 80.7 MB in the end (delta: 361.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 237.27 ms. Allocated memory is still 154.1 MB. Free memory was 127.6 MB in the beginning and 118.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.33 ms. Allocated memory is still 154.1 MB. Free memory was 118.4 MB in the beginning and 116.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 474.39 ms. Allocated memory is still 154.1 MB. Free memory was 116.9 MB in the beginning and 104.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 444.59 ms. Allocated memory is still 154.1 MB. Free memory was 104.3 MB in the beginning and 131.3 MB in the end (delta: -27.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] unsigned int n = __VERIFIER_nondet_uint(); [L16] unsigned int x=n, y=0; VAL [n=0, x=0, y=0] [L17] COND FALSE !(x>0) VAL [n=0, x=0, y=0] [L22] CALL __VERIFIER_assert(y!=n) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] CALL reach_error() [L3] __assert_fail("0", "count_up_down-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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=22occurred 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, 12 NumberOfCodeBlocks, 12 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...