/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/loop-acceleration/simple_3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 16:26:43,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:26:43,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:26:44,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 16:26:44,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:26:44,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:26:44,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:26:44,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:26:44,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:26:44,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:26:44,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:26:44,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:26:44,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:26:44,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:26:44,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:26:44,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:26:44,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:26:44,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:26:44,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:26:44,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:26:44,108 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 [2021-02-21 16:26:44,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:26:44,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:26:44,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:26:44,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:26:44,154 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:26:44,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:26:44,154 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:26:44,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:26:44,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:26:44,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:26:44,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:26:44,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:26:44,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:26:44,157 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:26:44,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:26:44,157 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:26:44,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:26:44,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:26:44,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:26:44,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:26:44,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:26:44,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:26:44,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:26:44,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:26:44,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:26:44,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:26:44,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:26:44,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:26:44,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:26:44,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:26:44,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:26:44,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:26:44,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:26:44,571 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:26:44,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2021-02-21 16:26:44,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c1efd88/001931463c76460395eab59bc3df1b73/FLAG6887caf57 [2021-02-21 16:26:45,174 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:26:45,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2021-02-21 16:26:45,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c1efd88/001931463c76460395eab59bc3df1b73/FLAG6887caf57 [2021-02-21 16:26:45,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c1efd88/001931463c76460395eab59bc3df1b73 [2021-02-21 16:26:45,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:26:45,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:26:45,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:26:45,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:26:45,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:26:45,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:26:45" (1/1) ... [2021-02-21 16:26:45,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e230422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45, skipping insertion in model container [2021-02-21 16:26:45,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:26:45" (1/1) ... [2021-02-21 16:26:45,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:26:45,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:26:45,744 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c[376,389] [2021-02-21 16:26:45,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:26:45,764 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:26:45,776 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c[376,389] [2021-02-21 16:26:45,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:26:45,795 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:26:45,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45 WrapperNode [2021-02-21 16:26:45,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:26:45,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:26:45,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:26:45,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:26:45,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45" (1/1) ... [2021-02-21 16:26:45,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45" (1/1) ... [2021-02-21 16:26:45,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45" (1/1) ... [2021-02-21 16:26:45,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45" (1/1) ... [2021-02-21 16:26:45,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45" (1/1) ... [2021-02-21 16:26:45,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45" (1/1) ... [2021-02-21 16:26:45,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45" (1/1) ... [2021-02-21 16:26:45,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:26:45,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:26:45,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:26:45,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:26:45,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45" (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 [2021-02-21 16:26:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:26:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:26:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:26:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 16:26:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:26:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:26:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:26:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:26:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:26:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2021-02-21 16:26:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 16:26:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:26:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:26:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:26:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:26:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:26:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:26:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:26:46,309 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:26:46,310 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 16:26:46,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:26:46 BoogieIcfgContainer [2021-02-21 16:26:46,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:26:46,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:26:46,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:26:46,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:26:46,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:26:45" (1/3) ... [2021-02-21 16:26:46,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac11d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:26:46, skipping insertion in model container [2021-02-21 16:26:46,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:45" (2/3) ... [2021-02-21 16:26:46,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac11d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:26:46, skipping insertion in model container [2021-02-21 16:26:46,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:26:46" (3/3) ... [2021-02-21 16:26:46,335 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_3-1.c [2021-02-21 16:26:46,352 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:26:46,363 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:26:46,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:26:46,474 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:26:46,477 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:26:46,477 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:26:46,478 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:26:46,478 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:26:46,478 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:26:46,478 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:26:46,478 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:26:46,501 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2021-02-21 16:26:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-02-21 16:26:46,507 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:26:46,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:26:46,508 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:26:46,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:26:46,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1301225826, now seen corresponding path program 1 times [2021-02-21 16:26:46,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:26:46,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355777575] [2021-02-21 16:26:46,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:26:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:26:46,683 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:26:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:26:46,722 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:26:46,749 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 16:26:46,750 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 16:26:46,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:26:46,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:26:46 BoogieIcfgContainer [2021-02-21 16:26:46,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:26:46,782 INFO L168 Benchmark]: Toolchain (without parser) took 1234.61 ms. Allocated memory is still 151.0 MB. Free memory was 106.2 MB in the beginning and 110.3 MB in the end (delta: -4.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:26:46,782 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:26:46,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.51 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 129.1 MB in the end (delta: -24.2 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. [2021-02-21 16:26:46,785 INFO L168 Benchmark]: Boogie Preprocessor took 34.88 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 127.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:26:46,786 INFO L168 Benchmark]: RCFGBuilder took 479.43 ms. Allocated memory is still 151.0 MB. Free memory was 127.7 MB in the beginning and 123.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. [2021-02-21 16:26:46,787 INFO L168 Benchmark]: TraceAbstraction took 461.89 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 110.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-21 16:26:46,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 238.51 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 129.1 MB in the end (delta: -24.2 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.88 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 127.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 479.43 ms. Allocated memory is still 151.0 MB. Free memory was 127.7 MB in the beginning and 123.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 461.89 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 110.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] unsigned int x = 0; [L15] unsigned short N = __VERIFIER_nondet_ushort(); [L17] COND FALSE !(x < N) VAL [N=0, x=0] [L21] CALL __VERIFIER_assert(x % 2) VAL [\old(cond)=0] [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 21 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=18occurred 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, 11 NumberOfCodeBlocks, 11 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...