/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 0.2.0-b8ad66e [2020-10-23 18:43:42,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:43:42,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:43:42,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:43:42,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:43:42,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:43:42,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:43:42,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:43:42,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:43:42,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:43:42,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:43:42,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:43:42,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:43:42,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:43:42,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:43:42,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:43:42,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:43:42,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:43:42,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:43:42,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:43:42,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:43:42,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:43:42,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:43:42,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:43:42,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:43:42,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:43:42,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:43:42,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:43:42,785 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 [2020-10-23 18:43:42,817 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:43:42,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:43:42,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:43:42,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:43:42,820 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:43:42,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:43:42,821 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:43:42,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:43:42,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:43:42,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:43:42,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:43:42,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:43:42,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:43:42,824 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:43:42,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:43:42,827 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:43:42,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:43:42,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:43:42,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:43:42,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:43:42,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:43:42,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:43:42,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:43:42,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:43:42,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:43:42,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:43:42,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:43:42,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:43:42,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:43:42,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:43:43,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:43:43,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:43:43,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:43:43,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:43:43,255 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:43:43,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2020-10-23 18:43:43,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac5d4a47/d3269fdc8abd405789dec978496dca8b/FLAGcf683224d [2020-10-23 18:43:43,980 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:43:43,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2020-10-23 18:43:43,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac5d4a47/d3269fdc8abd405789dec978496dca8b/FLAGcf683224d [2020-10-23 18:43:44,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac5d4a47/d3269fdc8abd405789dec978496dca8b [2020-10-23 18:43:44,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:43:44,369 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:43:44,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:44,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:43:44,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:43:44,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:44" (1/1) ... [2020-10-23 18:43:44,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9e0f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44, skipping insertion in model container [2020-10-23 18:43:44,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:44" (1/1) ... [2020-10-23 18:43:44,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:43:44,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:43:44,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:44,568 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:43:44,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:44,601 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:43:44,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44 WrapperNode [2020-10-23 18:43:44,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:44,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:43:44,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:43:44,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:43:44,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44" (1/1) ... [2020-10-23 18:43:44,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44" (1/1) ... [2020-10-23 18:43:44,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44" (1/1) ... [2020-10-23 18:43:44,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44" (1/1) ... [2020-10-23 18:43:44,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44" (1/1) ... [2020-10-23 18:43:44,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44" (1/1) ... [2020-10-23 18:43:44,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44" (1/1) ... [2020-10-23 18:43:44,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:43:44,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:43:44,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:43:44,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:43:44,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44" (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 [2020-10-23 18:43:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:43:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:43:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:43:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:43:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:43:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:43:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:43:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:43:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:43:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-23 18:43:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:43:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:43:44,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:43:44,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:43:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:43:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:43:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:43:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:43:45,169 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:43:45,170 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:43:45,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:45 BoogieIcfgContainer [2020-10-23 18:43:45,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:43:45,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:43:45,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:43:45,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:43:45,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:43:44" (1/3) ... [2020-10-23 18:43:45,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536d4462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:45, skipping insertion in model container [2020-10-23 18:43:45,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:44" (2/3) ... [2020-10-23 18:43:45,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536d4462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:45, skipping insertion in model container [2020-10-23 18:43:45,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:45" (3/3) ... [2020-10-23 18:43:45,187 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_3-1.c [2020-10-23 18:43:45,242 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:43:45,265 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:43:45,295 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:43:45,336 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:43:45,336 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:43:45,336 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:43:45,337 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:43:45,337 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:43:45,337 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:43:45,337 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:43:45,337 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:43:45,361 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-10-23 18:43:45,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-23 18:43:45,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:45,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:45,369 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:45,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:45,379 INFO L82 PathProgramCache]: Analyzing trace with hash 671356177, now seen corresponding path program 1 times [2020-10-23 18:43:45,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:45,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743652392] [2020-10-23 18:43:45,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:43:45,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:43:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:43:45,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:43:45,627 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:43:45,628 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:43:45,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:43:45,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:43:45 BoogieIcfgContainer [2020-10-23 18:43:45,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:43:45,666 INFO L168 Benchmark]: Toolchain (without parser) took 1300.65 ms. Allocated memory is still 152.0 MB. Free memory was 127.6 MB in the beginning and 123.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:45,667 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:43:45,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.07 ms. Allocated memory is still 152.0 MB. Free memory was 126.9 MB in the beginning and 117.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:45,669 INFO L168 Benchmark]: Boogie Preprocessor took 34.54 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 116.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:45,670 INFO L168 Benchmark]: RCFGBuilder took 533.40 ms. Allocated memory is still 152.0 MB. Free memory was 116.1 MB in the beginning and 103.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:45,671 INFO L168 Benchmark]: TraceAbstraction took 487.76 ms. Allocated memory is still 152.0 MB. Free memory was 103.3 MB in the beginning and 123.2 MB in the end (delta: -19.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:43:45,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 231.07 ms. Allocated memory is still 152.0 MB. Free memory was 126.9 MB in the beginning and 117.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.54 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 116.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 533.40 ms. Allocated memory is still 152.0 MB. Free memory was 116.1 MB in the beginning and 103.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 487.76 ms. Allocated memory is still 152.0 MB. Free memory was 103.3 MB in the beginning and 123.2 MB in the end (delta: -19.9 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: [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] CALL reach_error() [L3] __assert_fail("0", "simple_3-1.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: 0.2s, 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=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...