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/nla-digbench/fermat1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:22:47,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:22:47,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:22:47,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:22:47,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:22:47,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:22:47,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:22:47,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:22:47,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:22:47,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:22:47,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:22:47,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:22:47,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:22:47,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:22:47,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:22:47,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:22:47,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:22:47,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:22:47,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:22:47,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:22:47,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:22:47,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:22:47,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:22:47,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:22:47,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:22:47,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:22:47,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:22:47,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:22:47,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:22:47,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:22:47,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:22:47,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:22:47,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:22:47,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:22:47,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:22:47,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:22:47,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:22:47,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:22:47,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:22:47,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:22:47,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:22:47,619 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 02:22:47,639 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:22:47,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:22:47,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:22:47,640 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:22:47,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:22:47,641 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:22:47,642 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:22:47,642 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:22:47,642 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:22:47,642 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:22:47,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:22:47,645 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:22:47,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:22:47,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:22:47,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:22:47,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:22:47,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:22:47,646 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:22:47,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:22:47,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:22:47,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:22:47,647 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:22:47,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:22:47,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:22:47,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:22:47,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:22:47,648 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:22:47,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:22:47,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:22:47,649 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:22:47,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:22:47,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:22:47,716 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:22:47,718 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:22:47,718 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:22:47,719 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat1.c [2019-09-10 02:22:47,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7390e023b/9cb2568d8c5c4532a400d431c35e9534/FLAGe5a925f2a [2019-09-10 02:22:48,173 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:22:48,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat1.c [2019-09-10 02:22:48,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7390e023b/9cb2568d8c5c4532a400d431c35e9534/FLAGe5a925f2a [2019-09-10 02:22:48,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7390e023b/9cb2568d8c5c4532a400d431c35e9534 [2019-09-10 02:22:48,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:22:48,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:22:48,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:22:48,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:22:48,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:22:48,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:22:48" (1/1) ... [2019-09-10 02:22:48,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122e0d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48, skipping insertion in model container [2019-09-10 02:22:48,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:22:48" (1/1) ... [2019-09-10 02:22:48,589 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:22:48,609 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:22:48,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:22:48,786 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:22:48,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:22:48,823 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:22:48,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48 WrapperNode [2019-09-10 02:22:48,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:22:48,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:22:48,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:22:48,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:22:48,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48" (1/1) ... [2019-09-10 02:22:48,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48" (1/1) ... [2019-09-10 02:22:48,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48" (1/1) ... [2019-09-10 02:22:48,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48" (1/1) ... [2019-09-10 02:22:48,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48" (1/1) ... [2019-09-10 02:22:48,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48" (1/1) ... [2019-09-10 02:22:48,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48" (1/1) ... [2019-09-10 02:22:48,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:22:48,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:22:48,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:22:48,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:22:48,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48" (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 02:22:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:22:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:22:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 02:22:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:22:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:22:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 02:22:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 02:22:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 02:22:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:22:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:22:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:22:49,215 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:22:49,215 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-10 02:22:49,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:22:49 BoogieIcfgContainer [2019-09-10 02:22:49,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:22:49,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:22:49,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:22:49,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:22:49,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:22:48" (1/3) ... [2019-09-10 02:22:49,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1728722e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:22:49, skipping insertion in model container [2019-09-10 02:22:49,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:22:48" (2/3) ... [2019-09-10 02:22:49,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1728722e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:22:49, skipping insertion in model container [2019-09-10 02:22:49,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:22:49" (3/3) ... [2019-09-10 02:22:49,224 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat1.c [2019-09-10 02:22:49,233 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:22:49,241 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:22:49,266 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:22:49,315 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:22:49,315 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:22:49,315 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:22:49,316 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:22:49,316 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:22:49,316 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:22:49,316 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:22:49,316 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:22:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-09-10 02:22:49,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 02:22:49,346 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:22:49,347 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:22:49,349 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:22:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:22:49,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1029581307, now seen corresponding path program 1 times [2019-09-10 02:22:49,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:22:49,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:22:49,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:22:49,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:22:49,406 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:22:49,424 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 02:22:49,424 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 02:22:49,425 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) [2019-09-10 02:22:49,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:22:49,446 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 02:22:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:22:49,464 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 02:22:49,466 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:22:49,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:22:49,466 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:22:49,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:22:49,479 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:22:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:22:49,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2019-09-10 02:22:49,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:22:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:22:49,522 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:22:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:22:49,542 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:22:49,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-09-10 02:22:49,542 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:22:49,546 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:22:49,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:22:49,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:22:49,562 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-09-10 02:22:49,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:22:49,581 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2019-09-10 02:22:49,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:22:49,583 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-10 02:22:49,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:22:49,592 INFO L225 Difference]: With dead ends: 26 [2019-09-10 02:22:49,592 INFO L226 Difference]: Without dead ends: 21 [2019-09-10 02:22:49,594 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:22:49,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-10 02:22:49,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-10 02:22:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-10 02:22:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-09-10 02:22:49,629 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 10 [2019-09-10 02:22:49,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:22:49,629 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-09-10 02:22:49,630 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:22:49,630 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2019-09-10 02:22:49,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 02:22:49,630 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:22:49,630 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:22:49,631 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:22:49,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:22:49,631 INFO L82 PathProgramCache]: Analyzing trace with hash 989691158, now seen corresponding path program 1 times [2019-09-10 02:22:49,631 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:22:49,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:22:49,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:22:49,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:22:49,633 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:22:49,635 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 02:22:49,636 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 02:22:49,636 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 02:22:49,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:22:49,654 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 02:22:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:22:49,670 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 02:22:49,670 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:22:49,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:22:49,671 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:22:49,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:22:49,689 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:22:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:22:49,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-10 02:22:49,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:22:49,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:22:52,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:22:52,396 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:22:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:22:54,467 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:22:54,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-09-10 02:22:54,468 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:22:54,468 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:22:54,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:22:54,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=40, Unknown=1, NotChecked=0, Total=56 [2019-09-10 02:22:54,469 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand 5 states. [2019-09-10 02:22:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:22:58,655 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2019-09-10 02:22:58,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:22:58,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-10 02:22:58,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:22:58,658 INFO L225 Difference]: With dead ends: 35 [2019-09-10 02:22:58,658 INFO L226 Difference]: Without dead ends: 35 [2019-09-10 02:22:58,660 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2019-09-10 02:22:58,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-09-10 02:22:58,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-09-10 02:22:58,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-10 02:22:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-09-10 02:22:58,678 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 10 [2019-09-10 02:22:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:22:58,679 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-09-10 02:22:58,679 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:22:58,679 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-09-10 02:22:58,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 02:22:58,681 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:22:58,681 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:22:58,682 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:22:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:22:58,682 INFO L82 PathProgramCache]: Analyzing trace with hash -732641273, now seen corresponding path program 1 times [2019-09-10 02:22:58,682 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:22:58,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:22:58,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:22:58,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:22:58,687 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:22:58,691 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 02:22:58,693 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 02:22:58,693 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-10 02:22:58,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:22:58,723 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 02:22:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:22:58,735 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2019-09-10 02:22:58,737 INFO L207 CegarAbsIntRunner]: [0], [4], [13], [17], [61], [64], [66], [69], [71], [72], [73], [74], [76], [77], [82] [2019-09-10 02:22:58,791 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:22:58,791 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:22:58,876 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 02:22:59,968 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 02:22:59,972 INFO L272 AbstractInterpreter]: Visited 15 different actions 20 times. Never merged. Never widened. Performed 30 root evaluator evaluations with a maximum evaluation depth of 14. Performed 30 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Never found a fixpoint. Largest state had 7 variables. [2019-09-10 02:22:59,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:22:59,976 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 02:22:59,977 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:22:59,977 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 02:23:00,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:23:00,006 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:23:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:23:00,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-10 02:23:00,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:23:00,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:23:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:23:00,224 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:23:00,350 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:23:00,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:23:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:23:00,404 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-10 02:23:00,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2019-09-10 02:23:00,404 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:23:00,405 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 02:23:00,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 02:23:00,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:23:00,406 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 13 states. [2019-09-10 02:23:00,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:23:00,621 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2019-09-10 02:23:00,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:23:00,623 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 16 [2019-09-10 02:23:00,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:23:00,624 INFO L225 Difference]: With dead ends: 32 [2019-09-10 02:23:00,624 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:23:00,624 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2019-09-10 02:23:00,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:23:00,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:23:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:23:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:23:00,626 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-09-10 02:23:00,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:23:00,627 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:23:00,627 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 02:23:00,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:23:00,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:23:00,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:23:00 BoogieIcfgContainer [2019-09-10 02:23:00,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:23:00,638 INFO L168 Benchmark]: Toolchain (without parser) took 12063.80 ms. Allocated memory was 135.3 MB in the beginning and 293.6 MB in the end (delta: 158.3 MB). Free memory was 91.4 MB in the beginning and 256.7 MB in the end (delta: -165.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:23:00,640 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 135.3 MB. Free memory was 109.7 MB in the beginning and 109.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:23:00,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.70 ms. Allocated memory is still 135.3 MB. Free memory was 91.2 MB in the beginning and 80.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:23:00,644 INFO L168 Benchmark]: Boogie Preprocessor took 132.01 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 80.9 MB in the beginning and 178.0 MB in the end (delta: -97.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:23:00,645 INFO L168 Benchmark]: RCFGBuilder took 260.53 ms. Allocated memory is still 201.9 MB. Free memory was 178.0 MB in the beginning and 165.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:23:00,646 INFO L168 Benchmark]: TraceAbstraction took 11416.49 ms. Allocated memory was 201.9 MB in the beginning and 293.6 MB in the end (delta: 91.8 MB). Free memory was 164.8 MB in the beginning and 256.7 MB in the end (delta: -91.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:23:00,655 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 135.3 MB. Free memory was 109.7 MB in the beginning and 109.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.70 ms. Allocated memory is still 135.3 MB. Free memory was 91.2 MB in the beginning and 80.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.01 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 80.9 MB in the beginning and 178.0 MB in the end (delta: -97.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 260.53 ms. Allocated memory is still 201.9 MB. Free memory was 178.0 MB in the beginning and 165.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11416.49 ms. Allocated memory was 201.9 MB in the beginning and 293.6 MB in the end (delta: 91.8 MB). Free memory was 164.8 MB in the beginning and 256.7 MB in the end (delta: -91.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 11.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 4.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 33 SDslu, 115 SDs, 0 SdLazy, 90 SolverSat, 15 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 4 QuantifiedInterpolants, 4704 SizeOfPredicates, 11 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...