/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/float1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:01:30,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:01:30,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:01:30,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:01:30,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:01:30,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:01:30,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:01:30,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:01:30,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:01:30,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:01:30,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:01:30,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:01:30,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:01:30,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:01:30,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:01:30,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:01:30,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:01:30,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:01:30,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:01:30,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:01:30,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:01:30,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:01:30,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:01:30,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:01:30,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:01:30,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:01:30,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:01:30,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:01:30,657 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 22:01:30,695 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:01:30,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:01:30,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:01:30,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:01:30,699 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:01:30,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:01:30,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:01:30,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:01:30,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:01:30,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:01:30,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:01:30,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:01:30,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:01:30,701 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:01:30,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:01:30,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:01:30,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:01:30,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:01:30,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:01:30,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:01:30,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:01:30,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:01:30,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:01:30,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:01:30,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:01:30,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:01:30,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:01:30,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:01:30,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:01:30,706 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 22:01:30,983 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:01:30,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:01:30,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:01:31,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:01:31,001 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:01:31,002 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c [2020-07-21 22:01:31,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c896eb7/77be11e02db6412c9138b12d8611c022/FLAG1c64bfd41 [2020-07-21 22:01:31,527 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:01:31,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c [2020-07-21 22:01:31,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c896eb7/77be11e02db6412c9138b12d8611c022/FLAG1c64bfd41 [2020-07-21 22:01:31,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c896eb7/77be11e02db6412c9138b12d8611c022 [2020-07-21 22:01:31,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:01:31,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:01:31,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:01:31,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:01:31,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:01:31,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:01:31" (1/1) ... [2020-07-21 22:01:31,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143da84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:31, skipping insertion in model container [2020-07-21 22:01:31,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:01:31" (1/1) ... [2020-07-21 22:01:31,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:01:31,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:01:32,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:01:32,102 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:01:32,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:01:32,132 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:01:32,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32 WrapperNode [2020-07-21 22:01:32,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:01:32,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:01:32,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:01:32,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:01:32,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32" (1/1) ... [2020-07-21 22:01:32,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32" (1/1) ... [2020-07-21 22:01:32,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32" (1/1) ... [2020-07-21 22:01:32,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32" (1/1) ... [2020-07-21 22:01:32,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32" (1/1) ... [2020-07-21 22:01:32,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32" (1/1) ... [2020-07-21 22:01:32,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32" (1/1) ... [2020-07-21 22:01:32,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:01:32,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:01:32,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:01:32,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:01:32,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32" (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 22:01:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:01:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:01:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:01:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:01:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:01:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:01:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:01:32,423 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:01:32,423 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 22:01:32,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:01:32 BoogieIcfgContainer [2020-07-21 22:01:32,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:01:32,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:01:32,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:01:32,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:01:32,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:01:31" (1/3) ... [2020-07-21 22:01:32,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168e2944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:01:32, skipping insertion in model container [2020-07-21 22:01:32,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:01:32" (2/3) ... [2020-07-21 22:01:32,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168e2944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:01:32, skipping insertion in model container [2020-07-21 22:01:32,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:01:32" (3/3) ... [2020-07-21 22:01:32,435 INFO L109 eAbstractionObserver]: Analyzing ICFG float1.c [2020-07-21 22:01:32,444 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:01:32,450 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-21 22:01:32,462 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-21 22:01:32,486 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:01:32,487 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:01:32,487 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:01:32,487 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:01:32,487 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:01:32,487 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:01:32,487 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:01:32,488 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:01:32,504 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-07-21 22:01:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-21 22:01:32,509 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:01:32,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:01:32,510 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:01:32,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:01:32,517 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2020-07-21 22:01:32,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:01:32,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971934886] [2020-07-21 22:01:32,526 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 22:01:32,572 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:01:32,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 22:01:32,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:01:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 22:01:32,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:01:32,595 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 22:01:32,596 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 22:01:32,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:01:32,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:01:32 BoogieIcfgContainer [2020-07-21 22:01:32,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:01:32,840 INFO L168 Benchmark]: Toolchain (without parser) took 926.03 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 105.8 MB in the beginning and 160.5 MB in the end (delta: -54.8 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:32,841 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 22:01:32,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.05 ms. Allocated memory is still 147.3 MB. Free memory was 105.3 MB in the beginning and 95.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:32,846 INFO L168 Benchmark]: Boogie Preprocessor took 25.51 ms. Allocated memory is still 147.3 MB. Free memory was 95.8 MB in the beginning and 94.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:32,847 INFO L168 Benchmark]: RCFGBuilder took 268.09 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 94.4 MB in the beginning and 174.4 MB in the end (delta: -80.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:32,848 INFO L168 Benchmark]: TraceAbstraction took 407.02 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 160.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-07-21 22:01:32,859 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 219.05 ms. Allocated memory is still 147.3 MB. Free memory was 105.3 MB in the beginning and 95.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.51 ms. Allocated memory is still 147.3 MB. Free memory was 95.8 MB in the beginning and 94.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 268.09 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 94.4 MB in the beginning and 174.4 MB in the end (delta: -80.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 407.02 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 160.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 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, 4 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...