java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-benchs/inv_square_int.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:35:50,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:35:50,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:35:50,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:35:50,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:35:50,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:35:50,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:35:50,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:35:50,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:35:50,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:35:50,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:35:50,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:35:50,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:35:50,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:35:50,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:35:50,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:35:50,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:35:50,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:35:50,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:35:50,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:35:50,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:35:50,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:35:50,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:35:50,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:35:50,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:35:50,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:35:50,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:35:50,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:35:50,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:35:50,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:35:50,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:35:50,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:35:50,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:35:50,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:35:50,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:35:50,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:35:50,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:35:50,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:35:50,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:35:50,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:35:50,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:35:50,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:35:50,401 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:35:50,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:35:50,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:35:50,401 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:35:50,402 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:35:50,402 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:35:50,402 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:35:50,403 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:35:50,403 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:35:50,403 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:35:50,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:35:50,404 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:35:50,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:35:50,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:35:50,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:35:50,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:35:50,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:35:50,405 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:35:50,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:35:50,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:35:50,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:35:50,406 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:35:50,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:35:50,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:35:50,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:35:50,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:35:50,407 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:35:50,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:35:50,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:35:50,408 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:35:50,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:35:50,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:35:50,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:35:50,453 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:35:50,453 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:35:50,454 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_square_int.c [2019-09-10 01:35:50,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fef8a6bd1/977b6091ce7c45f992aee59a8c990d10/FLAG794df283b [2019-09-10 01:35:50,937 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:35:50,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_square_int.c [2019-09-10 01:35:50,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fef8a6bd1/977b6091ce7c45f992aee59a8c990d10/FLAG794df283b [2019-09-10 01:35:51,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fef8a6bd1/977b6091ce7c45f992aee59a8c990d10 [2019-09-10 01:35:51,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:35:51,354 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:35:51,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:35:51,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:35:51,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:35:51,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:35:51" (1/1) ... [2019-09-10 01:35:51,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f255d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51, skipping insertion in model container [2019-09-10 01:35:51,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:35:51" (1/1) ... [2019-09-10 01:35:51,370 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:35:51,388 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:35:51,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:35:51,567 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:35:51,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:35:51,598 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:35:51,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51 WrapperNode [2019-09-10 01:35:51,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:35:51,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:35:51,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:35:51,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:35:51,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51" (1/1) ... [2019-09-10 01:35:51,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51" (1/1) ... [2019-09-10 01:35:51,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51" (1/1) ... [2019-09-10 01:35:51,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51" (1/1) ... [2019-09-10 01:35:51,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51" (1/1) ... [2019-09-10 01:35:51,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51" (1/1) ... [2019-09-10 01:35:51,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51" (1/1) ... [2019-09-10 01:35:51,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:35:51,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:35:51,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:35:51,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:35:51,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51" (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 [2019-09-10 01:35:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:35:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:35:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 01:35:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:35:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:35:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:35:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:35:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 01:35:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:35:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:35:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:35:51,899 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:35:51,899 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 01:35:51,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:35:51 BoogieIcfgContainer [2019-09-10 01:35:51,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:35:51,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:35:51,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:35:51,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:35:51,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:35:51" (1/3) ... [2019-09-10 01:35:51,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9cc1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:35:51, skipping insertion in model container [2019-09-10 01:35:51,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:51" (2/3) ... [2019-09-10 01:35:51,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9cc1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:35:51, skipping insertion in model container [2019-09-10 01:35:51,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:35:51" (3/3) ... [2019-09-10 01:35:51,909 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square_int.c [2019-09-10 01:35:51,918 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:35:51,925 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:35:51,941 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:35:51,967 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:35:51,967 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:35:51,967 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:35:51,967 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:35:51,967 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:35:51,968 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:35:51,968 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:35:51,968 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:35:51,982 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-09-10 01:35:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-09-10 01:35:51,991 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:35:51,992 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:35:51,993 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:35:51,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:35:51,999 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2019-09-10 01:35:52,001 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:35:52,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:35:52,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:35:52,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:35:52,041 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:35:52,059 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:35:52,059 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:35:52,059 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:35:52,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:35:52,076 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:35:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-09-10 01:35:52,092 INFO L285 seRefinementStrategy]: Strategy TaipanRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-09-10 01:35:52,092 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:35:52,114 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-09-10 01:35:52,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:35:52 BoogieIcfgContainer [2019-09-10 01:35:52,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:35:52,118 INFO L168 Benchmark]: Toolchain (without parser) took 762.27 ms. Allocated memory was 131.6 MB in the beginning and 197.1 MB in the end (delta: 65.5 MB). Free memory was 87.6 MB in the beginning and 148.4 MB in the end (delta: -60.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:52,119 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:35:52,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.96 ms. Allocated memory is still 131.6 MB. Free memory was 87.4 MB in the beginning and 78.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:52,121 INFO L168 Benchmark]: Boogie Preprocessor took 101.22 ms. Allocated memory was 131.6 MB in the beginning and 197.1 MB in the end (delta: 65.5 MB). Free memory was 78.2 MB in the beginning and 173.4 MB in the end (delta: -95.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:52,122 INFO L168 Benchmark]: RCFGBuilder took 200.08 ms. Allocated memory is still 197.1 MB. Free memory was 173.4 MB in the beginning and 162.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:52,123 INFO L168 Benchmark]: TraceAbstraction took 212.82 ms. Allocated memory is still 197.1 MB. Free memory was 162.8 MB in the beginning and 148.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:52,127 INFO L335 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 131.6 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.96 ms. Allocated memory is still 131.6 MB. Free memory was 87.4 MB in the beginning and 78.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.22 ms. Allocated memory was 131.6 MB in the beginning and 197.1 MB in the end (delta: 65.5 MB). Free memory was 78.2 MB in the beginning and 173.4 MB in the end (delta: -95.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 200.08 ms. Allocated memory is still 197.1 MB. Free memory was 173.4 MB in the beginning and 162.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212.82 ms. Allocated memory is still 197.1 MB. Free memory was 162.8 MB in the beginning and 148.4 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L12] int x; [L13] float y, z; [L15] x = __VERIFIER_nondet_int() [L18] y = x*x - 2.f [L19] CALL __VERIFIER_assert(y != 0.f) [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNKNOWN Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...