/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:44:35,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:44:35,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:44:35,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:44:35,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:44:35,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:44:35,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:44:35,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:44:35,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:44:35,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:44:35,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:44:35,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:44:35,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:44:35,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:44:35,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:44:35,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:44:35,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:44:35,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:44:35,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:44:35,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:44:35,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:44:35,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:44:35,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:44:35,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:44:35,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 10:44:35,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:44:35,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:44:35,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:44:35,064 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 [2020-07-20 10:44:35,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:44:35,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:44:35,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:44:35,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:44:35,080 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:44:35,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:44:35,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:44:35,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:44:35,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:44:35,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:44:35,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:44:35,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:44:35,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:44:35,082 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:44:35,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:44:35,082 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:44:35,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:44:35,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:44:35,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:44:35,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:44:35,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:44:35,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:44:35,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:44:35,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:44:35,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:44:35,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:44:35,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:44:35,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:44:35,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:44:35,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:44:35,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:44:35,402 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:44:35,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:44:35,407 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:44:35,408 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:44:35,409 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c [2020-07-20 10:44:35,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e73c0c2/e61bd93cb6f34ff4b7907a683277ac05/FLAGf967f431a [2020-07-20 10:44:35,932 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:44:35,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c [2020-07-20 10:44:35,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e73c0c2/e61bd93cb6f34ff4b7907a683277ac05/FLAGf967f431a [2020-07-20 10:44:36,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e73c0c2/e61bd93cb6f34ff4b7907a683277ac05 [2020-07-20 10:44:36,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:44:36,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:44:36,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:44:36,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:44:36,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:44:36,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:36" (1/1) ... [2020-07-20 10:44:36,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f8717a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36, skipping insertion in model container [2020-07-20 10:44:36,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:36" (1/1) ... [2020-07-20 10:44:36,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:44:36,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:44:36,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:44:36,503 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:44:36,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:44:36,527 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:44:36,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36 WrapperNode [2020-07-20 10:44:36,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:44:36,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:44:36,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:44:36,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:44:36,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36" (1/1) ... [2020-07-20 10:44:36,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36" (1/1) ... [2020-07-20 10:44:36,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36" (1/1) ... [2020-07-20 10:44:36,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36" (1/1) ... [2020-07-20 10:44:36,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36" (1/1) ... [2020-07-20 10:44:36,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36" (1/1) ... [2020-07-20 10:44:36,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36" (1/1) ... [2020-07-20 10:44:36,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:44:36,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:44:36,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:44:36,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:44:36,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36" (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 [2020-07-20 10:44:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:44:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:44:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:44:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:44:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:44:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:44:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:44:36,824 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:44:36,825 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 10:44:36,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:36 BoogieIcfgContainer [2020-07-20 10:44:36,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:44:36,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:44:36,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:44:36,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:44:36,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:44:36" (1/3) ... [2020-07-20 10:44:36,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35be8820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:36, skipping insertion in model container [2020-07-20 10:44:36,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:36" (2/3) ... [2020-07-20 10:44:36,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35be8820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:36, skipping insertion in model container [2020-07-20 10:44:36,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:36" (3/3) ... [2020-07-20 10:44:36,836 INFO L109 eAbstractionObserver]: Analyzing ICFG float1.c [2020-07-20 10:44:36,844 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:44:36,850 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-20 10:44:36,862 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-20 10:44:36,885 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:44:36,885 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:44:36,885 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:44:36,885 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:44:36,885 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:44:36,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:44:36,886 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:44:36,886 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:44:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-07-20 10:44:36,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-20 10:44:36,905 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:44:36,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:44:36,906 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:44:36,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:44:36,910 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2020-07-20 10:44:36,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:44:36,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133687] [2020-07-20 10:44:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:44:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:44:36,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:44:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:44:36,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:44:36,991 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:44:36,993 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:44:37,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:44:37,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:44:37 BoogieIcfgContainer [2020-07-20 10:44:37,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:44:37,232 INFO L168 Benchmark]: Toolchain (without parser) took 927.53 ms. Allocated memory was 136.3 MB in the beginning and 198.7 MB in the end (delta: 62.4 MB). Free memory was 100.9 MB in the beginning and 154.6 MB in the end (delta: -53.7 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:37,233 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-20 10:44:37,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.86 ms. Allocated memory is still 136.3 MB. Free memory was 100.4 MB in the beginning and 91.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:37,235 INFO L168 Benchmark]: Boogie Preprocessor took 23.62 ms. Allocated memory is still 136.3 MB. Free memory was 91.2 MB in the beginning and 89.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:37,236 INFO L168 Benchmark]: RCFGBuilder took 276.61 ms. Allocated memory was 136.3 MB in the beginning and 198.7 MB in the end (delta: 62.4 MB). Free memory was 89.9 MB in the beginning and 167.8 MB in the end (delta: -78.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:37,237 INFO L168 Benchmark]: TraceAbstraction took 399.61 ms. Allocated memory is still 198.7 MB. Free memory was 167.1 MB in the beginning and 154.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:37,240 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 222.86 ms. Allocated memory is still 136.3 MB. Free memory was 100.4 MB in the beginning and 91.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.62 ms. Allocated memory is still 136.3 MB. Free memory was 91.2 MB in the beginning and 89.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 276.61 ms. Allocated memory was 136.3 MB in the beginning and 198.7 MB in the end (delta: 62.4 MB). Free memory was 89.9 MB in the beginning and 167.8 MB in the end (delta: -78.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 399.61 ms. Allocated memory is still 198.7 MB. Free memory was 167.1 MB in the beginning and 154.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of to_real at line 6. Possible FailurePath: [L3] double x; [L4] int y; [L6] x=2 [L7] x-=0.6 [L8] y=x [L10] COND TRUE !(y==1) VAL [y=0] [L10] __VERIFIER_error() VAL [y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 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=16occurred 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, 7 NumberOfCodeBlocks, 7 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...