/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/cast_float_ptr.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:55:00,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:55:00,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:55:00,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:55:00,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:55:00,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:55:00,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:55:00,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:55:00,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:55:00,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:55:00,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:55:00,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:55:00,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:55:00,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:55:00,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:55:00,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:55:00,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:55:00,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:55:00,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:55:00,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:55:00,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:55:00,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:55:00,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:55:00,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:55:00,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:55:00,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:55:00,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:55:00,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:55:00,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:55:00,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:55:00,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:55:00,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:55:00,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:55:00,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:55:00,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:55:00,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:55:00,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:55:00,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:55:00,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:55:00,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:55:00,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:55:00,293 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 [2020-07-21 12:55:00,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:55:00,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:55:00,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:55:00,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:55:00,320 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:55:00,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:55:00,320 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:55:00,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:55:00,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:55:00,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:55:00,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:55:00,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:55:00,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:55:00,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:55:00,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:55:00,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:55:00,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:55:00,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:55:00,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:55:00,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:55:00,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:55:00,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:55:00,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:55:00,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:55:00,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:55:00,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:55:00,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:55:00,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:55:00,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:55:00,326 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:55:00,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:55:00,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:55:00,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:55:00,653 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:55:00,653 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:55:00,654 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_float_ptr.c [2020-07-21 12:55:00,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea950adc1/90a0886544974c09ba3b8845735184b5/FLAG64630abdf [2020-07-21 12:55:01,098 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:55:01,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_float_ptr.c [2020-07-21 12:55:01,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea950adc1/90a0886544974c09ba3b8845735184b5/FLAG64630abdf [2020-07-21 12:55:01,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea950adc1/90a0886544974c09ba3b8845735184b5 [2020-07-21 12:55:01,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:55:01,510 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:55:01,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:55:01,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:55:01,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:55:01,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:55:01" (1/1) ... [2020-07-21 12:55:01,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602fa461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01, skipping insertion in model container [2020-07-21 12:55:01,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:55:01" (1/1) ... [2020-07-21 12:55:01,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:55:01,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:55:01,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:55:01,734 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:55:01,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:55:01,772 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:55:01,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01 WrapperNode [2020-07-21 12:55:01,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:55:01,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:55:01,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:55:01,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:55:01,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01" (1/1) ... [2020-07-21 12:55:01,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01" (1/1) ... [2020-07-21 12:55:01,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01" (1/1) ... [2020-07-21 12:55:01,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01" (1/1) ... [2020-07-21 12:55:01,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01" (1/1) ... [2020-07-21 12:55:01,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01" (1/1) ... [2020-07-21 12:55:01,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01" (1/1) ... [2020-07-21 12:55:01,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:55:01,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:55:01,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:55:01,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:55:01,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01" (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 [2020-07-21 12:55:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:55:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:55:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 12:55:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-07-21 12:55:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:55:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:55:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-21 12:55:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 12:55:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-07-21 12:55:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:55:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-21 12:55:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:55:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:55:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:55:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-21 12:55:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:55:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:55:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:55:02,356 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:55:02,356 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 12:55:02,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:55:02 BoogieIcfgContainer [2020-07-21 12:55:02,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:55:02,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:55:02,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:55:02,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:55:02,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:55:01" (1/3) ... [2020-07-21 12:55:02,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f575175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:55:02, skipping insertion in model container [2020-07-21 12:55:02,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:01" (2/3) ... [2020-07-21 12:55:02,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f575175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:55:02, skipping insertion in model container [2020-07-21 12:55:02,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:55:02" (3/3) ... [2020-07-21 12:55:02,371 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2020-07-21 12:55:02,383 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:55:02,392 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:55:02,409 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:55:02,436 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:55:02,436 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:55:02,436 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:55:02,436 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:55:02,437 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:55:02,437 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:55:02,437 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:55:02,437 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:55:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-07-21 12:55:02,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-21 12:55:02,463 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:55:02,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:55:02,464 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:55:02,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:55:02,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1713573888, now seen corresponding path program 1 times [2020-07-21 12:55:02,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:55:02,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472943369] [2020-07-21 12:55:02,482 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 12:55:02,671 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:55:02,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 12:55:02,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:55:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 12:55:02,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:55:02,720 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 12:55:02,721 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 12:55:02,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:55:02,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:55:02 BoogieIcfgContainer [2020-07-21 12:55:02,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:55:02,969 INFO L168 Benchmark]: Toolchain (without parser) took 1459.12 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 101.2 MB in the beginning and 138.4 MB in the end (delta: -37.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:55:02,971 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 12:55:02,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.46 ms. Allocated memory is still 144.2 MB. Free memory was 100.7 MB in the beginning and 90.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-07-21 12:55:02,973 INFO L168 Benchmark]: Boogie Preprocessor took 164.44 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 90.1 MB in the beginning and 179.3 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:55:02,974 INFO L168 Benchmark]: RCFGBuilder took 424.24 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 161.4 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2020-07-21 12:55:02,975 INFO L168 Benchmark]: TraceAbstraction took 602.56 ms. Allocated memory is still 201.3 MB. Free memory was 160.8 MB in the beginning and 138.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:55:02,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.46 ms. Allocated memory is still 144.2 MB. Free memory was 100.7 MB in the beginning and 90.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 164.44 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 90.1 MB in the beginning and 179.3 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 424.24 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 161.4 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 602.56 ms. Allocated memory is still 201.3 MB. Free memory was 160.8 MB in the beginning and 138.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 23, overapproximation of bitwiseAnd at line 11. Possible FailurePath: [L32] double a; [L33] float r; [L35] a = __VERIFIER_nondet_double() [L36] CALL cast(a) VAL [\old(d)=4] [L8] double dmax; [L9] float f; [L11] EXPR \read(d) VAL [\old(d)=4, \read(d)=12, d={2:0}, dmax={3:0}, f={4:0}] [L11] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L13] ((unsigned*)&dmax)[0] = 0x47efffff [L14] ((unsigned*)&dmax)[1] = 0xe0000000 [L16] EXPR \read(d) [L16] EXPR \read(dmax) VAL [\old(d)=4, \read(d)=4, \read(dmax)=1, d={2:0}, dmax={3:0}, f={4:0}] [L16] COND FALSE !(d > dmax) [L19] EXPR \read(d) [L19] EXPR \read(dmax) VAL [\old(d)=4, \read(d)=4, \read(dmax)=1, d={2:0}, dmax={3:0}, f={4:0}] [L19] COND FALSE !(-d > dmax) [L23] EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 [L23] EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 VAL [\old(d)=4, \read(d)=4, \read(d)=4, d={2:0}, dmax={3:0}, f={4:0}] [L23] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38) VAL [\old(cond)=0] [L3] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L3] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, 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=28occurred 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 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...