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/geo1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:26:16,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:26:16,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:26:16,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:26:16,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:26:16,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:26:16,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:26:16,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:26:16,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:26:16,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:26:16,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:26:16,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:26:16,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:26:16,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:26:16,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:26:16,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:26:16,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:26:16,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:26:16,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:26:16,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:26:16,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:26:16,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:26:16,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:26:16,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:26:16,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:26:16,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:26:16,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:26:16,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:26:16,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:26:16,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:26:16,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:26:16,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:26:16,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:26:16,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:26:16,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:26:16,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:26:16,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:26:16,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:26:16,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:26:16,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:26:16,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:26:16,954 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 [2019-09-20 13:26:16,982 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:26:16,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:26:16,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:26:16,984 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:26:16,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:26:16,985 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:26:16,985 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:26:16,985 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:26:16,986 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:26:16,986 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:26:16,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:26:16,989 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:26:16,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:26:16,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:26:16,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:26:16,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:26:16,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:26:16,990 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:26:16,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:26:16,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:26:16,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:26:16,991 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:26:16,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:26:16,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:26:16,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:26:16,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:26:16,993 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:26:16,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:26:16,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:26:16,993 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:26:17,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:26:17,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:26:17,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:26:17,077 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:26:17,077 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:26:17,079 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo1.c [2019-09-20 13:26:17,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2264d236b/ded95f6890aa47a3852b2787fb4fd9d6/FLAGf7d787a3c [2019-09-20 13:26:17,622 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:26:17,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1.c [2019-09-20 13:26:17,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2264d236b/ded95f6890aa47a3852b2787fb4fd9d6/FLAGf7d787a3c [2019-09-20 13:26:17,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2264d236b/ded95f6890aa47a3852b2787fb4fd9d6 [2019-09-20 13:26:17,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:26:17,988 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:26:17,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:26:17,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:26:17,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:26:17,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5033d487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17, skipping insertion in model container [2019-09-20 13:26:17,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:18,005 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:26:18,025 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:26:18,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:26:18,232 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:26:18,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:26:18,273 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:26:18,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18 WrapperNode [2019-09-20 13:26:18,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:26:18,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:26:18,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:26:18,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:26:18,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18" (1/1) ... [2019-09-20 13:26:18,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18" (1/1) ... [2019-09-20 13:26:18,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18" (1/1) ... [2019-09-20 13:26:18,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18" (1/1) ... [2019-09-20 13:26:18,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18" (1/1) ... [2019-09-20 13:26:18,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18" (1/1) ... [2019-09-20 13:26:18,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18" (1/1) ... [2019-09-20 13:26:18,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:26:18,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:26:18,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:26:18,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:26:18,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18" (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 [2019-09-20 13:26:18,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:26:18,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:26:18,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:26:18,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:26:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:26:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:26:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:26:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:26:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:26:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:26:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:26:18,644 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:26:18,644 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:26:18,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:18 BoogieIcfgContainer [2019-09-20 13:26:18,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:26:18,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:26:18,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:26:18,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:26:18,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:26:17" (1/3) ... [2019-09-20 13:26:18,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225a1797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:26:18, skipping insertion in model container [2019-09-20 13:26:18,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:18" (2/3) ... [2019-09-20 13:26:18,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225a1797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:26:18, skipping insertion in model container [2019-09-20 13:26:18,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:18" (3/3) ... [2019-09-20 13:26:18,655 INFO L109 eAbstractionObserver]: Analyzing ICFG geo1.c [2019-09-20 13:26:18,665 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:26:18,674 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:26:18,702 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:26:18,754 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:26:18,754 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:26:18,755 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:26:18,755 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:26:18,755 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:26:18,755 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:26:18,755 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:26:18,756 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:26:18,773 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-09-20 13:26:18,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 13:26:18,786 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:26:18,787 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:26:18,791 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:26:18,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:18,797 INFO L82 PathProgramCache]: Analyzing trace with hash -156194248, now seen corresponding path program 1 times [2019-09-20 13:26:18,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:26:18,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:18,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:18,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:18,854 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:26:18,883 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 13:26:18,883 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 13:26:18,884 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 [2019-09-20 13:26:18,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:18,903 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-20 13:26:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:18,929 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-20 13:26:18,931 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-20 13:26:18,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:18,932 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 [2019-09-20 13:26:18,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:18,951 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-20 13:26:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:18,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-20 13:26:18,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:26:19,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:19,063 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:26:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:19,125 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:26:19,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-09-20 13:26:19,126 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:26:19,132 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:26:19,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:26:19,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:26:19,147 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2019-09-20 13:26:19,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:26:19,244 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-09-20 13:26:19,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:26:19,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-20 13:26:19,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:26:19,259 INFO L225 Difference]: With dead ends: 29 [2019-09-20 13:26:19,259 INFO L226 Difference]: Without dead ends: 24 [2019-09-20 13:26:19,262 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:26:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-09-20 13:26:19,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2019-09-20 13:26:19,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-20 13:26:19,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-09-20 13:26:19,309 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2019-09-20 13:26:19,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:26:19,310 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-09-20 13:26:19,310 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:26:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-09-20 13:26:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-20 13:26:19,311 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:26:19,311 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:26:19,312 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:26:19,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:19,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1377881770, now seen corresponding path program 1 times [2019-09-20 13:26:19,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:26:19,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:19,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:19,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:19,314 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:26:19,320 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 13:26:19,320 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 13:26:19,321 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) [2019-09-20 13:26:19,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:19,338 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 13:26:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:19,356 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2019-09-20 13:26:19,358 INFO L207 CegarAbsIntRunner]: [0], [4], [13], [17], [23], [27], [30], [32], [35], [37], [38], [39], [40], [42], [43], [44] [2019-09-20 13:26:19,398 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:26:19,398 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:26:19,574 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:26:19,579 INFO L272 AbstractInterpreter]: Visited 16 different actions 21 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 9. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Never found a fixpoint. Largest state had 7 variables. [2019-09-20 13:26:19,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:19,591 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-20 13:26:19,592 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:19,592 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 [2019-09-20 13:26:19,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:19,620 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-20 13:26:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:19,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-20 13:26:19,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:26:19,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:26:19,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:19,786 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:26:19,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:26:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:19,940 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:26:19,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2019-09-20 13:26:19,941 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-20 13:26:19,943 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-20 13:26:19,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-20 13:26:19,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:26:19,945 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 11 states. [2019-09-20 13:26:20,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:26:20,032 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-09-20 13:26:20,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:26:20,033 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 17 [2019-09-20 13:26:20,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:26:20,034 INFO L225 Difference]: With dead ends: 20 [2019-09-20 13:26:20,034 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:26:20,036 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:26:20,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:26:20,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:26:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:26:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:26:20,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-09-20 13:26:20,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:26:20,039 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:26:20,039 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-20 13:26:20,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:26:20,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:26:20,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:26:20 BoogieIcfgContainer [2019-09-20 13:26:20,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:26:20,051 INFO L168 Benchmark]: Toolchain (without parser) took 2060.76 ms. Allocated memory was 131.1 MB in the beginning and 199.8 MB in the end (delta: 68.7 MB). Free memory was 87.3 MB in the beginning and 80.9 MB in the end (delta: 6.4 MB). Peak memory consumption was 75.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:20,053 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 131.1 MB. Free memory was 105.3 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:26:20,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.35 ms. Allocated memory is still 131.1 MB. Free memory was 87.1 MB in the beginning and 77.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:20,058 INFO L168 Benchmark]: Boogie Preprocessor took 126.36 ms. Allocated memory was 131.1 MB in the beginning and 199.8 MB in the end (delta: 68.7 MB). Free memory was 77.6 MB in the beginning and 176.1 MB in the end (delta: -98.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:20,061 INFO L168 Benchmark]: RCFGBuilder took 244.85 ms. Allocated memory is still 199.8 MB. Free memory was 176.1 MB in the beginning and 164.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:20,062 INFO L168 Benchmark]: TraceAbstraction took 1400.45 ms. Allocated memory is still 199.8 MB. Free memory was 163.7 MB in the beginning and 80.9 MB in the end (delta: 82.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:20,071 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 131.1 MB. Free memory was 105.3 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.35 ms. Allocated memory is still 131.1 MB. Free memory was 87.1 MB in the beginning and 77.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.36 ms. Allocated memory was 131.1 MB in the beginning and 199.8 MB in the end (delta: 68.7 MB). Free memory was 77.6 MB in the beginning and 176.1 MB in the end (delta: -98.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 244.85 ms. Allocated memory is still 199.8 MB. Free memory was 176.1 MB in the beginning and 164.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1400.45 ms. Allocated memory is still 199.8 MB. Free memory was 163.7 MB in the beginning and 80.9 MB in the end (delta: 82.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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, 21 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 17 SDslu, 92 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 1 QuantifiedInterpolants, 2752 SizeOfPredicates, 9 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 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...