/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 BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:01:31,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:01:31,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:01:31,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:01:31,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:01:31,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:01:31,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:01:31,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:01:31,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:01:31,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:01:31,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:01:31,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:01:31,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:01:31,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:01:31,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:01:31,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:01:31,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:01:31,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:01:31,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:01:31,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:01:31,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:01:31,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:01:31,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:01:31,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:01:31,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 22:01:31,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 22:01:31,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 22:01:31,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 22:01:31,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 22:01:31,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-21 22:01:31,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:01:31,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:01:31,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:01:31,690 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 22:01:31,704 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:01:31,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:01:31,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:01:31,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:01:31,705 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:01:31,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:01:31,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:01:31,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:01:31,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:01:31,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:01:31,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:01:31,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:01:31,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:01:31,707 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:01:31,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:01:31,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:01:31,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:01:31,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:01:31,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:01:31,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:01:31,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:01:31,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:01:31,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:01:31,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:01:31,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:01:31,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:01:31,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:01:31,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:01:31,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:01:31,710 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 -> BIGGEST_EQUIVALENCE_CLASS 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 -> 4 [2020-07-21 22:01:31,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:01:32,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:01:32,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:01:32,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:01:32,011 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:01:32,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float11.c [2020-07-21 22:01:32,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8185dcaca/65e8694219d644bf99ded7cd9e33a1bd/FLAG957edda83 [2020-07-21 22:01:32,573 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:01:32,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c [2020-07-21 22:01:32,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8185dcaca/65e8694219d644bf99ded7cd9e33a1bd/FLAG957edda83 [2020-07-21 22:01:32,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8185dcaca/65e8694219d644bf99ded7cd9e33a1bd [2020-07-21 22:01:32,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:01:32,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:01:32,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:01:32,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:01:32,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:01:32,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:01:32" (1/1) ... [2020-07-21 22:01:32,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@202a8ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32, skipping insertion in model container [2020-07-21 22:01:32,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:01:32" (1/1) ... [2020-07-21 22:01:32,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:01:32,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:01:33,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:01:33,166 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:01:33,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:01:33,203 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:01:33,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33 WrapperNode [2020-07-21 22:01:33,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:01:33,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:01:33,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:01:33,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:01:33,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33" (1/1) ... [2020-07-21 22:01:33,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33" (1/1) ... [2020-07-21 22:01:33,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33" (1/1) ... [2020-07-21 22:01:33,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33" (1/1) ... [2020-07-21 22:01:33,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33" (1/1) ... [2020-07-21 22:01:33,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33" (1/1) ... [2020-07-21 22:01:33,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33" (1/1) ... [2020-07-21 22:01:33,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:01:33,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:01:33,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:01:33,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:01:33,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33" (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 22:01:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:01:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:01:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:01:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:01:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:01:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:01:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:01:33,755 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:01:33,755 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 22:01:33,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:01:33 BoogieIcfgContainer [2020-07-21 22:01:33,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:01:33,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:01:33,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:01:33,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:01:33,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:01:32" (1/3) ... [2020-07-21 22:01:33,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1262fee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:01:33, skipping insertion in model container [2020-07-21 22:01:33,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:33" (2/3) ... [2020-07-21 22:01:33,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1262fee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:01:33, skipping insertion in model container [2020-07-21 22:01:33,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:01:33" (3/3) ... [2020-07-21 22:01:33,770 INFO L109 eAbstractionObserver]: Analyzing ICFG float11.c [2020-07-21 22:01:33,779 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:01:33,786 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2020-07-21 22:01:33,801 INFO L251 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2020-07-21 22:01:33,828 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:01:33,828 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:01:33,828 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:01:33,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:01:33,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:01:33,829 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:01:33,829 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:01:33,829 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:01:33,855 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-07-21 22:01:33,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-21 22:01:33,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:01:33,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-21 22:01:33,862 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr29ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:01:33,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:01:33,867 INFO L82 PathProgramCache]: Analyzing trace with hash -680722770, now seen corresponding path program 1 times [2020-07-21 22:01:33,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:01:33,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487904857] [2020-07-21 22:01:33,876 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:01:33,943 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:01:33,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 22:01:33,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:01:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 22:01:33,949 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:01:33,957 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 22:01:33,957 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 22:01:34,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:01:34,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:01:34 BoogieIcfgContainer [2020-07-21 22:01:34,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:01:34,178 INFO L168 Benchmark]: Toolchain (without parser) took 1234.15 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 102.7 MB in the beginning and 144.8 MB in the end (delta: -42.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:34,179 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 22:01:34,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.20 ms. Allocated memory is still 137.4 MB. Free memory was 102.3 MB in the beginning and 92.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:34,181 INFO L168 Benchmark]: Boogie Preprocessor took 39.06 ms. Allocated memory is still 137.4 MB. Free memory was 92.2 MB in the beginning and 90.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:34,182 INFO L168 Benchmark]: RCFGBuilder took 516.82 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.5 MB in the beginning and 159.3 MB in the end (delta: -68.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:34,183 INFO L168 Benchmark]: TraceAbstraction took 412.42 ms. Allocated memory is still 201.3 MB. Free memory was 159.3 MB in the beginning and 144.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:34,187 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 259.20 ms. Allocated memory is still 137.4 MB. Free memory was 102.3 MB in the beginning and 92.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.06 ms. Allocated memory is still 137.4 MB. Free memory was 92.2 MB in the beginning and 90.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 516.82 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.5 MB in the beginning and 159.3 MB in the end (delta: -68.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 412.42 ms. Allocated memory is still 201.3 MB. Free memory was 159.3 MB in the beginning and 144.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 5. Possible FailurePath: [L5] COND TRUE !(1.0<2.5) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 98 locations, 30 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=98occurred 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, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 3 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...