java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/memsafety/test-0234_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 05:40:13,708 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 05:40:13,710 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 05:40:13,724 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 05:40:13,724 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 05:40:13,725 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 05:40:13,727 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 05:40:13,728 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 05:40:13,730 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 05:40:13,730 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 05:40:13,731 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 05:40:13,731 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 05:40:13,732 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 05:40:13,733 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 05:40:13,733 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 05:40:13,736 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 05:40:13,738 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 05:40:13,740 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 05:40:13,741 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 05:40:13,743 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 05:40:13,745 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 05:40:13,745 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 05:40:13,746 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 05:40:13,747 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 05:40:13,748 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 05:40:13,749 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 05:40:13,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 05:40:13,750 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 05:40:13,750 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 05:40:13,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 05:40:13,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 05:40:13,751 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-21 05:40:13,762 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 05:40:13,762 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 05:40:13,763 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 05:40:13,763 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 05:40:13,763 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 05:40:13,763 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 05:40:13,764 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 05:40:13,764 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 05:40:13,764 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 05:40:13,765 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 05:40:13,765 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 05:40:13,765 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 05:40:13,765 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 05:40:13,765 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 05:40:13,765 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 05:40:13,766 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 05:40:13,766 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 05:40:13,766 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 05:40:13,766 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 05:40:13,766 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 05:40:13,767 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 05:40:13,767 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 05:40:13,767 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 05:40:13,767 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 05:40:13,767 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 05:40:13,768 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 05:40:13,768 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 05:40:13,768 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 05:40:13,768 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 05:40:13,768 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 05:40:13,769 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 05:40:13,769 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 05:40:13,769 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 05:40:13,769 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 05:40:13,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 05:40:13,769 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 05:40:13,770 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 05:40:13,770 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 05:40:13,771 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 05:40:13,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 05:40:13,817 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 05:40:13,821 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 05:40:13,822 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 05:40:13,823 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 05:40:13,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0234_false-valid-memtrack.i [2018-01-21 05:40:14,006 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 05:40:14,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 05:40:14,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 05:40:14,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 05:40:14,018 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 05:40:14,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:40:13" (1/1) ... [2018-01-21 05:40:14,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3724a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14, skipping insertion in model container [2018-01-21 05:40:14,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:40:13" (1/1) ... [2018-01-21 05:40:14,037 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:40:14,082 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:40:14,213 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:40:14,241 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:40:14,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14 WrapperNode [2018-01-21 05:40:14,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 05:40:14,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 05:40:14,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 05:40:14,255 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 05:40:14,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14" (1/1) ... [2018-01-21 05:40:14,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14" (1/1) ... [2018-01-21 05:40:14,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14" (1/1) ... [2018-01-21 05:40:14,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14" (1/1) ... [2018-01-21 05:40:14,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14" (1/1) ... [2018-01-21 05:40:14,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14" (1/1) ... [2018-01-21 05:40:14,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14" (1/1) ... [2018-01-21 05:40:14,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 05:40:14,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 05:40:14,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 05:40:14,299 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 05:40:14,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14" (1/1) ... No working directory specified, using /storage/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 [2018-01-21 05:40:14,349 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 05:40:14,349 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 05:40:14,349 INFO L136 BoogieDeclarations]: Found implementation of procedure calloc_model [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure l4_insert [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure l3_insert [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure l2_insert [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure l1_insert [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure l0_insert [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure l4_destroy [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure l3_destroy [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure l2_destroy [2018-01-21 05:40:14,350 INFO L136 BoogieDeclarations]: Found implementation of procedure l1_destroy [2018-01-21 05:40:14,351 INFO L136 BoogieDeclarations]: Found implementation of procedure l0_destroy [2018-01-21 05:40:14,351 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 05:40:14,351 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 05:40:14,351 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 05:40:14,351 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 05:40:14,351 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 05:40:14,351 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 05:40:14,351 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-21 05:40:14,351 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure calloc_model [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure l4_insert [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure l3_insert [2018-01-21 05:40:14,352 INFO L128 BoogieDeclarations]: Found specification of procedure l2_insert [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure l1_insert [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure l0_insert [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure l4_destroy [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure l3_destroy [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure l2_destroy [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure l1_destroy [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure l0_destroy [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 05:40:14,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 05:40:14,874 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 05:40:14,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:40:14 BoogieIcfgContainer [2018-01-21 05:40:14,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 05:40:14,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 05:40:14,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 05:40:14,878 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 05:40:14,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 05:40:13" (1/3) ... [2018-01-21 05:40:14,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:40:14, skipping insertion in model container [2018-01-21 05:40:14,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:40:14" (2/3) ... [2018-01-21 05:40:14,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:40:14, skipping insertion in model container [2018-01-21 05:40:14,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:40:14" (3/3) ... [2018-01-21 05:40:14,882 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0234_false-valid-memtrack.i [2018-01-21 05:40:14,889 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 05:40:14,897 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-01-21 05:40:14,940 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:40:14,940 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:40:14,940 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:40:14,940 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:40:14,941 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:40:14,941 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:40:14,941 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:40:14,941 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == l3_destroyErr0EnsuresViolation======== [2018-01-21 05:40:14,942 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:40:14,962 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2018-01-21 05:40:14,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-21 05:40:14,970 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:40:14,970 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:40:14,971 INFO L371 AbstractCegarLoop]: === Iteration 1 === [l3_destroyErr0EnsuresViolation]=== [2018-01-21 05:40:14,975 INFO L82 PathProgramCache]: Analyzing trace with hash -462352159, now seen corresponding path program 1 times [2018-01-21 05:40:14,977 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:40:15,019 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:40:15,020 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:40:15,020 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:40:15,020 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:40:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:40:15,069 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:40:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:40:15,110 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:40:15,110 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 05:40:15,110 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:40:15,114 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 05:40:15,124 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 05:40:15,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 05:40:15,126 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 2 states. [2018-01-21 05:40:15,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:40:15,248 INFO L93 Difference]: Finished difference Result 334 states and 402 transitions. [2018-01-21 05:40:15,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 05:40:15,250 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-01-21 05:40:15,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:40:15,261 INFO L225 Difference]: With dead ends: 334 [2018-01-21 05:40:15,261 INFO L226 Difference]: Without dead ends: 150 [2018-01-21 05:40:15,267 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 05:40:15,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-01-21 05:40:15,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-01-21 05:40:15,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-01-21 05:40:15,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 165 transitions. [2018-01-21 05:40:15,319 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 165 transitions. Word has length 25 [2018-01-21 05:40:15,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:40:15,319 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 165 transitions. [2018-01-21 05:40:15,319 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 05:40:15,320 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 165 transitions. [2018-01-21 05:40:15,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-01-21 05:40:15,327 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:40:15,327 INFO L322 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:40:15,327 INFO L371 AbstractCegarLoop]: === Iteration 2 === [l3_destroyErr0EnsuresViolation]=== [2018-01-21 05:40:15,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1712601065, now seen corresponding path program 1 times [2018-01-21 05:40:15,328 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:40:15,329 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:40:15,329 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:40:15,329 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:40:15,329 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:40:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:40:15,378 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:40:15,549 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-01-21 05:40:15,549 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:40:15,550 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:40:15,551 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-01-21 05:40:15,554 INFO L201 CegarAbsIntRunner]: [0], [4], [5], [7], [8], [9], [10], [11], [15], [22], [23], [27], [28], [29], [30], [31], [35], [41], [45], [48], [51], [57], [62], [66], [67], [85], [87], [91], [94], [97], [103], [104], [105], [106], [107], [109], [115], [116], [117], [119], [123], [126], [129], [135], [136], [137], [138], [139], [141], [143], [147], [150], [153], [159], [160], [161], [162], [163], [165], [167], [171], [174], [177], [183], [184], [185], [186], [187], [189], [190], [191], [193], [194], [196], [198], [200], [201], [202], [203], [204], [205], [206], [208], [210], [213], [215], [217], [218], [219], [220], [222], [226], [227], [249], [253], [254], [272], [273], [274], [275], [276], [278], [280], [281], [282], [283], [284], [285], [286], [287], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [306], [307], [308], [310] [2018-01-21 05:40:15,612 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:40:15,612 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 05:40:37,727 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 05:40:37,729 INFO L268 AbstractInterpreter]: Visited 5 different actions 5 times. Never merged. Never widened. Never found a fixpoint. Largest state had 16 variables. [2018-01-21 05:40:37,741 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 05:40:56,712 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 68.3% of their original sizes. [2018-01-21 05:40:56,712 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 05:40:56,819 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 05:40:56,819 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:40:56,820 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 05:40:56,820 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:40:56,821 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-21 05:40:56,822 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-21 05:40:56,822 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-21 05:40:56,822 INFO L87 Difference]: Start difference. First operand 150 states and 165 transitions. Second operand 6 states. [2018-01-21 05:41:02,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:41:02,395 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2018-01-21 05:41:02,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-21 05:41:02,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2018-01-21 05:41:02,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:41:02,396 INFO L225 Difference]: With dead ends: 150 [2018-01-21 05:41:02,396 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 05:41:02,397 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-21 05:41:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 05:41:02,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 05:41:02,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 05:41:02,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 05:41:02,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 211 [2018-01-21 05:41:02,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:41:02,398 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 05:41:02,398 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-21 05:41:02,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 05:41:02,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 05:41:02,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-21 05:41:02,491 INFO L401 ceAbstractionStarter]: For program point l3_destroyEXIT(lines 824 833) no Hoare annotation was computed. [2018-01-21 05:41:02,491 INFO L401 ceAbstractionStarter]: For program point L827''(line 827) no Hoare annotation was computed. [2018-01-21 05:41:02,491 INFO L404 ceAbstractionStarter]: At program point L826''(lines 826 832) the Hoare annotation is: true [2018-01-21 05:41:02,491 INFO L401 ceAbstractionStarter]: For program point L829(line 829) no Hoare annotation was computed. [2018-01-21 05:41:02,491 INFO L401 ceAbstractionStarter]: For program point L828(line 828) no Hoare annotation was computed. [2018-01-21 05:41:02,492 INFO L401 ceAbstractionStarter]: For program point L827(line 827) no Hoare annotation was computed. [2018-01-21 05:41:02,492 INFO L404 ceAbstractionStarter]: At program point l3_destroyENTRY(lines 824 833) the Hoare annotation is: true [2018-01-21 05:41:02,493 INFO L401 ceAbstractionStarter]: For program point L826(lines 826 832) no Hoare annotation was computed. [2018-01-21 05:41:02,493 INFO L401 ceAbstractionStarter]: For program point L826'''(lines 826 832) no Hoare annotation was computed. [2018-01-21 05:41:02,493 INFO L401 ceAbstractionStarter]: For program point l3_destroyErr0EnsuresViolation(lines 824 833) no Hoare annotation was computed. [2018-01-21 05:41:02,493 INFO L401 ceAbstractionStarter]: For program point L828'(line 828) no Hoare annotation was computed. [2018-01-21 05:41:02,493 INFO L401 ceAbstractionStarter]: For program point L829'(line 829) no Hoare annotation was computed. [2018-01-21 05:41:02,493 INFO L404 ceAbstractionStarter]: At program point L827'(line 827) the Hoare annotation is: true [2018-01-21 05:41:02,494 INFO L404 ceAbstractionStarter]: At program point L810(line 810) the Hoare annotation is: true [2018-01-21 05:41:02,494 INFO L404 ceAbstractionStarter]: At program point L809''(lines 809 811) the Hoare annotation is: true [2018-01-21 05:41:02,494 INFO L401 ceAbstractionStarter]: For program point l0_insertErr0EnsuresViolation(lines 806 814) no Hoare annotation was computed. [2018-01-21 05:41:02,494 INFO L401 ceAbstractionStarter]: For program point L813(line 813) no Hoare annotation was computed. [2018-01-21 05:41:02,494 INFO L401 ceAbstractionStarter]: For program point L812(line 812) no Hoare annotation was computed. [2018-01-21 05:41:02,494 INFO L401 ceAbstractionStarter]: For program point l0_insertEXIT(lines 806 814) no Hoare annotation was computed. [2018-01-21 05:41:02,494 INFO L401 ceAbstractionStarter]: For program point L812'(line 812) no Hoare annotation was computed. [2018-01-21 05:41:02,495 INFO L401 ceAbstractionStarter]: For program point L810'(line 810) no Hoare annotation was computed. [2018-01-21 05:41:02,495 INFO L401 ceAbstractionStarter]: For program point L809'''(lines 809 811) no Hoare annotation was computed. [2018-01-21 05:41:02,495 INFO L404 ceAbstractionStarter]: At program point l0_insertENTRY(lines 806 814) the Hoare annotation is: true [2018-01-21 05:41:02,495 INFO L401 ceAbstractionStarter]: For program point L809(lines 809 811) no Hoare annotation was computed. [2018-01-21 05:41:02,495 INFO L401 ceAbstractionStarter]: For program point l0_insertFINAL(lines 806 814) no Hoare annotation was computed. [2018-01-21 05:41:02,495 INFO L404 ceAbstractionStarter]: At program point L808(line 808) the Hoare annotation is: true [2018-01-21 05:41:02,495 INFO L401 ceAbstractionStarter]: For program point L808'(line 808) no Hoare annotation was computed. [2018-01-21 05:41:02,495 INFO L404 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-01-21 05:41:02,496 INFO L404 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-01-21 05:41:02,496 INFO L401 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-01-21 05:41:02,496 INFO L401 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-01-21 05:41:02,498 INFO L401 ceAbstractionStarter]: For program point L817'''(lines 817 822) no Hoare annotation was computed. [2018-01-21 05:41:02,498 INFO L401 ceAbstractionStarter]: For program point l4_destroyErr0EnsuresViolation(lines 815 823) no Hoare annotation was computed. [2018-01-21 05:41:02,498 INFO L401 ceAbstractionStarter]: For program point l4_destroyEXIT(lines 815 823) no Hoare annotation was computed. [2018-01-21 05:41:02,498 INFO L404 ceAbstractionStarter]: At program point l4_destroyENTRY(lines 815 823) the Hoare annotation is: true [2018-01-21 05:41:02,498 INFO L404 ceAbstractionStarter]: At program point L817''(lines 817 822) the Hoare annotation is: true [2018-01-21 05:41:02,498 INFO L401 ceAbstractionStarter]: For program point L818(line 818) no Hoare annotation was computed. [2018-01-21 05:41:02,498 INFO L401 ceAbstractionStarter]: For program point L817(lines 817 822) no Hoare annotation was computed. [2018-01-21 05:41:02,499 INFO L401 ceAbstractionStarter]: For program point L819(line 819) no Hoare annotation was computed. [2018-01-21 05:41:02,499 INFO L401 ceAbstractionStarter]: For program point L819'(line 819) no Hoare annotation was computed. [2018-01-21 05:41:02,499 INFO L401 ceAbstractionStarter]: For program point L818'(line 818) no Hoare annotation was computed. [2018-01-21 05:41:02,499 INFO L401 ceAbstractionStarter]: For program point L791(lines 791 793) no Hoare annotation was computed. [2018-01-21 05:41:02,499 INFO L404 ceAbstractionStarter]: At program point L790(line 790) the Hoare annotation is: true [2018-01-21 05:41:02,499 INFO L401 ceAbstractionStarter]: For program point L795(line 795) no Hoare annotation was computed. [2018-01-21 05:41:02,499 INFO L401 ceAbstractionStarter]: For program point L794(line 794) no Hoare annotation was computed. [2018-01-21 05:41:02,499 INFO L404 ceAbstractionStarter]: At program point L792(line 792) the Hoare annotation is: true [2018-01-21 05:41:02,499 INFO L401 ceAbstractionStarter]: For program point l2_insertErr0EnsuresViolation(lines 788 796) no Hoare annotation was computed. [2018-01-21 05:41:02,500 INFO L401 ceAbstractionStarter]: For program point L794'(line 794) no Hoare annotation was computed. [2018-01-21 05:41:02,500 INFO L401 ceAbstractionStarter]: For program point L791'''(lines 791 793) no Hoare annotation was computed. [2018-01-21 05:41:02,500 INFO L401 ceAbstractionStarter]: For program point L792'(line 792) no Hoare annotation was computed. [2018-01-21 05:41:02,500 INFO L401 ceAbstractionStarter]: For program point L790'(line 790) no Hoare annotation was computed. [2018-01-21 05:41:02,500 INFO L404 ceAbstractionStarter]: At program point l2_insertENTRY(lines 788 796) the Hoare annotation is: true [2018-01-21 05:41:02,500 INFO L404 ceAbstractionStarter]: At program point L791''(lines 791 793) the Hoare annotation is: true [2018-01-21 05:41:02,500 INFO L401 ceAbstractionStarter]: For program point l2_insertEXIT(lines 788 796) no Hoare annotation was computed. [2018-01-21 05:41:02,500 INFO L401 ceAbstractionStarter]: For program point l2_insertFINAL(lines 788 796) no Hoare annotation was computed. [2018-01-21 05:41:02,501 INFO L401 ceAbstractionStarter]: For program point L867'''(lines 867 869) no Hoare annotation was computed. [2018-01-21 05:41:02,501 INFO L404 ceAbstractionStarter]: At program point L870(line 870) the Hoare annotation is: true [2018-01-21 05:41:02,501 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 864 871) no Hoare annotation was computed. [2018-01-21 05:41:02,501 INFO L401 ceAbstractionStarter]: For program point L870'(line 870) no Hoare annotation was computed. [2018-01-21 05:41:02,502 INFO L404 ceAbstractionStarter]: At program point L868(line 868) the Hoare annotation is: true [2018-01-21 05:41:02,502 INFO L401 ceAbstractionStarter]: For program point L867(lines 867 869) no Hoare annotation was computed. [2018-01-21 05:41:02,502 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 864 871) no Hoare annotation was computed. [2018-01-21 05:41:02,502 INFO L401 ceAbstractionStarter]: For program point L868'(line 868) no Hoare annotation was computed. [2018-01-21 05:41:02,502 INFO L404 ceAbstractionStarter]: At program point L867''(lines 867 869) the Hoare annotation is: true [2018-01-21 05:41:02,502 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 864 871) no Hoare annotation was computed. [2018-01-21 05:41:02,502 INFO L401 ceAbstractionStarter]: For program point L782'''(lines 782 784) no Hoare annotation was computed. [2018-01-21 05:41:02,502 INFO L404 ceAbstractionStarter]: At program point L783(line 783) the Hoare annotation is: true [2018-01-21 05:41:02,503 INFO L401 ceAbstractionStarter]: For program point L782(lines 782 784) no Hoare annotation was computed. [2018-01-21 05:41:02,503 INFO L404 ceAbstractionStarter]: At program point L781(line 781) the Hoare annotation is: true [2018-01-21 05:41:02,503 INFO L401 ceAbstractionStarter]: For program point L783'(line 783) no Hoare annotation was computed. [2018-01-21 05:41:02,503 INFO L401 ceAbstractionStarter]: For program point L786(line 786) no Hoare annotation was computed. [2018-01-21 05:41:02,503 INFO L401 ceAbstractionStarter]: For program point L781'(line 781) no Hoare annotation was computed. [2018-01-21 05:41:02,503 INFO L401 ceAbstractionStarter]: For program point L785(line 785) no Hoare annotation was computed. [2018-01-21 05:41:02,503 INFO L404 ceAbstractionStarter]: At program point l3_insertENTRY(lines 779 787) the Hoare annotation is: true [2018-01-21 05:41:02,503 INFO L404 ceAbstractionStarter]: At program point L782''(lines 782 784) the Hoare annotation is: true [2018-01-21 05:41:02,504 INFO L401 ceAbstractionStarter]: For program point L785'(line 785) no Hoare annotation was computed. [2018-01-21 05:41:02,504 INFO L401 ceAbstractionStarter]: For program point l3_insertEXIT(lines 779 787) no Hoare annotation was computed. [2018-01-21 05:41:02,504 INFO L401 ceAbstractionStarter]: For program point l3_insertFINAL(lines 779 787) no Hoare annotation was computed. [2018-01-21 05:41:02,504 INFO L401 ceAbstractionStarter]: For program point l3_insertErr0EnsuresViolation(lines 779 787) no Hoare annotation was computed. [2018-01-21 05:41:02,504 INFO L401 ceAbstractionStarter]: For program point l1_insertEXIT(lines 797 805) no Hoare annotation was computed. [2018-01-21 05:41:02,504 INFO L404 ceAbstractionStarter]: At program point L799(line 799) the Hoare annotation is: true [2018-01-21 05:41:02,504 INFO L401 ceAbstractionStarter]: For program point L803(line 803) no Hoare annotation was computed. [2018-01-21 05:41:02,504 INFO L404 ceAbstractionStarter]: At program point L801(line 801) the Hoare annotation is: true [2018-01-21 05:41:02,505 INFO L401 ceAbstractionStarter]: For program point L800(lines 800 802) no Hoare annotation was computed. [2018-01-21 05:41:02,505 INFO L401 ceAbstractionStarter]: For program point L803'(line 803) no Hoare annotation was computed. [2018-01-21 05:41:02,505 INFO L401 ceAbstractionStarter]: For program point L801'(line 801) no Hoare annotation was computed. [2018-01-21 05:41:02,507 INFO L401 ceAbstractionStarter]: For program point L804(line 804) no Hoare annotation was computed. [2018-01-21 05:41:02,507 INFO L404 ceAbstractionStarter]: At program point l1_insertENTRY(lines 797 805) the Hoare annotation is: true [2018-01-21 05:41:02,507 INFO L401 ceAbstractionStarter]: For program point L799'(line 799) no Hoare annotation was computed. [2018-01-21 05:41:02,507 INFO L401 ceAbstractionStarter]: For program point l1_insertFINAL(lines 797 805) no Hoare annotation was computed. [2018-01-21 05:41:02,508 INFO L404 ceAbstractionStarter]: At program point L800''(lines 800 802) the Hoare annotation is: true [2018-01-21 05:41:02,508 INFO L401 ceAbstractionStarter]: For program point L800'''(lines 800 802) no Hoare annotation was computed. [2018-01-21 05:41:02,508 INFO L401 ceAbstractionStarter]: For program point l1_insertErr0EnsuresViolation(lines 797 805) no Hoare annotation was computed. [2018-01-21 05:41:02,508 INFO L401 ceAbstractionStarter]: For program point l0_destroyEXIT(lines 854 863) no Hoare annotation was computed. [2018-01-21 05:41:02,508 INFO L401 ceAbstractionStarter]: For program point L858(line 858) no Hoare annotation was computed. [2018-01-21 05:41:02,508 INFO L401 ceAbstractionStarter]: For program point l0_destroyErr0EnsuresViolation(lines 854 863) no Hoare annotation was computed. [2018-01-21 05:41:02,508 INFO L401 ceAbstractionStarter]: For program point L857(line 857) no Hoare annotation was computed. [2018-01-21 05:41:02,508 INFO L401 ceAbstractionStarter]: For program point L856(lines 856 862) no Hoare annotation was computed. [2018-01-21 05:41:02,508 INFO L404 ceAbstractionStarter]: At program point L857'(line 857) the Hoare annotation is: true [2018-01-21 05:41:02,509 INFO L401 ceAbstractionStarter]: For program point L857''(line 857) no Hoare annotation was computed. [2018-01-21 05:41:02,509 INFO L401 ceAbstractionStarter]: For program point L858'(line 858) no Hoare annotation was computed. [2018-01-21 05:41:02,509 INFO L401 ceAbstractionStarter]: For program point L859(line 859) no Hoare annotation was computed. [2018-01-21 05:41:02,509 INFO L404 ceAbstractionStarter]: At program point L856''(lines 856 862) the Hoare annotation is: true [2018-01-21 05:41:02,509 INFO L401 ceAbstractionStarter]: For program point L856'''(lines 856 862) no Hoare annotation was computed. [2018-01-21 05:41:02,509 INFO L404 ceAbstractionStarter]: At program point l0_destroyENTRY(lines 854 863) the Hoare annotation is: true [2018-01-21 05:41:02,509 INFO L401 ceAbstractionStarter]: For program point L859'(line 859) no Hoare annotation was computed. [2018-01-21 05:41:02,509 INFO L401 ceAbstractionStarter]: For program point calloc_modelErr0EnsuresViolation(lines 740 743) no Hoare annotation was computed. [2018-01-21 05:41:02,509 INFO L401 ceAbstractionStarter]: For program point L742'(line 742) no Hoare annotation was computed. [2018-01-21 05:41:02,510 INFO L404 ceAbstractionStarter]: At program point calloc_modelENTRY(lines 740 743) the Hoare annotation is: true [2018-01-21 05:41:02,510 INFO L401 ceAbstractionStarter]: For program point L741'(line 741) no Hoare annotation was computed. [2018-01-21 05:41:02,510 INFO L401 ceAbstractionStarter]: For program point calloc_modelFINAL(lines 740 743) no Hoare annotation was computed. [2018-01-21 05:41:02,512 INFO L401 ceAbstractionStarter]: For program point calloc_modelEXIT(lines 740 743) no Hoare annotation was computed. [2018-01-21 05:41:02,512 INFO L404 ceAbstractionStarter]: At program point L742(line 742) the Hoare annotation is: true [2018-01-21 05:41:02,512 INFO L401 ceAbstractionStarter]: For program point L741(line 741) no Hoare annotation was computed. [2018-01-21 05:41:02,512 INFO L401 ceAbstractionStarter]: For program point l4_insertEXIT(lines 772 778) no Hoare annotation was computed. [2018-01-21 05:41:02,512 INFO L401 ceAbstractionStarter]: For program point l4_insertFINAL(lines 772 778) no Hoare annotation was computed. [2018-01-21 05:41:02,512 INFO L401 ceAbstractionStarter]: For program point L777(line 777) no Hoare annotation was computed. [2018-01-21 05:41:02,512 INFO L401 ceAbstractionStarter]: For program point L776(line 776) no Hoare annotation was computed. [2018-01-21 05:41:02,513 INFO L404 ceAbstractionStarter]: At program point L775(line 775) the Hoare annotation is: true [2018-01-21 05:41:02,513 INFO L404 ceAbstractionStarter]: At program point L774(line 774) the Hoare annotation is: true [2018-01-21 05:41:02,513 INFO L401 ceAbstractionStarter]: For program point l4_insertErr0EnsuresViolation(lines 772 778) no Hoare annotation was computed. [2018-01-21 05:41:02,513 INFO L401 ceAbstractionStarter]: For program point L776'(line 776) no Hoare annotation was computed. [2018-01-21 05:41:02,513 INFO L404 ceAbstractionStarter]: At program point l4_insertENTRY(lines 772 778) the Hoare annotation is: true [2018-01-21 05:41:02,513 INFO L401 ceAbstractionStarter]: For program point L775'(line 775) no Hoare annotation was computed. [2018-01-21 05:41:02,513 INFO L401 ceAbstractionStarter]: For program point L774'(line 774) no Hoare annotation was computed. [2018-01-21 05:41:02,513 INFO L401 ceAbstractionStarter]: For program point L775''(line 775) no Hoare annotation was computed. [2018-01-21 05:41:02,514 INFO L401 ceAbstractionStarter]: For program point L776''(line 776) no Hoare annotation was computed. [2018-01-21 05:41:02,514 INFO L401 ceAbstractionStarter]: For program point zalloc_or_dieFINAL(lines 765 771) no Hoare annotation was computed. [2018-01-21 05:41:02,514 INFO L401 ceAbstractionStarter]: For program point L767'(line 767) no Hoare annotation was computed. [2018-01-21 05:41:02,514 INFO L401 ceAbstractionStarter]: For program point zalloc_or_dieErr0EnsuresViolation(lines 765 771) no Hoare annotation was computed. [2018-01-21 05:41:02,514 INFO L404 ceAbstractionStarter]: At program point zalloc_or_dieENTRY(lines 765 771) the Hoare annotation is: true [2018-01-21 05:41:02,514 INFO L401 ceAbstractionStarter]: For program point L768(lines 768 769) no Hoare annotation was computed. [2018-01-21 05:41:02,514 INFO L401 ceAbstractionStarter]: For program point zalloc_or_dieEXIT(lines 765 771) no Hoare annotation was computed. [2018-01-21 05:41:02,514 INFO L404 ceAbstractionStarter]: At program point L767(line 767) the Hoare annotation is: true [2018-01-21 05:41:02,515 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0EnsuresViolation(lines 1 871) no Hoare annotation was computed. [2018-01-21 05:41:02,515 INFO L401 ceAbstractionStarter]: For program point L866'(line 866) no Hoare annotation was computed. [2018-01-21 05:41:02,515 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 871) no Hoare annotation was computed. [2018-01-21 05:41:02,515 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 871) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-21 05:41:02,515 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 871) no Hoare annotation was computed. [2018-01-21 05:41:02,515 INFO L401 ceAbstractionStarter]: For program point L866(line 866) no Hoare annotation was computed. [2018-01-21 05:41:02,515 INFO L401 ceAbstractionStarter]: For program point L846'''(lines 846 852) no Hoare annotation was computed. [2018-01-21 05:41:02,515 INFO L401 ceAbstractionStarter]: For program point L847(line 847) no Hoare annotation was computed. [2018-01-21 05:41:02,516 INFO L401 ceAbstractionStarter]: For program point L846(lines 846 852) no Hoare annotation was computed. [2018-01-21 05:41:02,516 INFO L404 ceAbstractionStarter]: At program point L847'(line 847) the Hoare annotation is: true [2018-01-21 05:41:02,516 INFO L401 ceAbstractionStarter]: For program point L847''(line 847) no Hoare annotation was computed. [2018-01-21 05:41:02,516 INFO L401 ceAbstractionStarter]: For program point L849(line 849) no Hoare annotation was computed. [2018-01-21 05:41:02,516 INFO L401 ceAbstractionStarter]: For program point L848(line 848) no Hoare annotation was computed. [2018-01-21 05:41:02,516 INFO L404 ceAbstractionStarter]: At program point L846''(lines 846 852) the Hoare annotation is: true [2018-01-21 05:41:02,516 INFO L404 ceAbstractionStarter]: At program point l1_destroyENTRY(lines 844 853) the Hoare annotation is: true [2018-01-21 05:41:02,516 INFO L401 ceAbstractionStarter]: For program point l1_destroyErr0EnsuresViolation(lines 844 853) no Hoare annotation was computed. [2018-01-21 05:41:02,517 INFO L401 ceAbstractionStarter]: For program point L848'(line 848) no Hoare annotation was computed. [2018-01-21 05:41:02,517 INFO L401 ceAbstractionStarter]: For program point L849'(line 849) no Hoare annotation was computed. [2018-01-21 05:41:02,517 INFO L401 ceAbstractionStarter]: For program point l1_destroyEXIT(lines 844 853) no Hoare annotation was computed. [2018-01-21 05:41:02,517 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 871) the Hoare annotation is: true [2018-01-21 05:41:02,517 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 871) no Hoare annotation was computed. [2018-01-21 05:41:02,517 INFO L397 ceAbstractionStarter]: At program point L1(lines 1 871) the Hoare annotation is: false [2018-01-21 05:41:02,517 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startErr0EnsuresViolation(lines 1 871) no Hoare annotation was computed. [2018-01-21 05:41:02,517 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 871) no Hoare annotation was computed. [2018-01-21 05:41:02,518 INFO L401 ceAbstractionStarter]: For program point L836'''(lines 836 842) no Hoare annotation was computed. [2018-01-21 05:41:02,518 INFO L401 ceAbstractionStarter]: For program point l2_destroyErr0EnsuresViolation(lines 834 843) no Hoare annotation was computed. [2018-01-21 05:41:02,518 INFO L401 ceAbstractionStarter]: For program point L836(lines 836 842) no Hoare annotation was computed. [2018-01-21 05:41:02,518 INFO L401 ceAbstractionStarter]: For program point L837''(line 837) no Hoare annotation was computed. [2018-01-21 05:41:02,518 INFO L401 ceAbstractionStarter]: For program point L839(line 839) no Hoare annotation was computed. [2018-01-21 05:41:02,518 INFO L401 ceAbstractionStarter]: For program point L838(line 838) no Hoare annotation was computed. [2018-01-21 05:41:02,518 INFO L404 ceAbstractionStarter]: At program point L836''(lines 836 842) the Hoare annotation is: true [2018-01-21 05:41:02,518 INFO L401 ceAbstractionStarter]: For program point L837(line 837) no Hoare annotation was computed. [2018-01-21 05:41:02,518 INFO L404 ceAbstractionStarter]: At program point l2_destroyENTRY(lines 834 843) the Hoare annotation is: true [2018-01-21 05:41:02,519 INFO L401 ceAbstractionStarter]: For program point l2_destroyEXIT(lines 834 843) no Hoare annotation was computed. [2018-01-21 05:41:02,519 INFO L401 ceAbstractionStarter]: For program point L839'(line 839) no Hoare annotation was computed. [2018-01-21 05:41:02,519 INFO L404 ceAbstractionStarter]: At program point L837'(line 837) the Hoare annotation is: true [2018-01-21 05:41:02,519 INFO L401 ceAbstractionStarter]: For program point L838'(line 838) no Hoare annotation was computed. [2018-01-21 05:41:02,522 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:41:02,523 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:41:02,523 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:41:02,523 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:41:02,523 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:41:02,523 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:41:02,523 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:41:02,523 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == l0_insertErr0EnsuresViolation======== [2018-01-21 05:41:02,523 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:41:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2018-01-21 05:41:02,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-21 05:41:02,528 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:41:02,528 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:41:02,528 INFO L371 AbstractCegarLoop]: === Iteration 1 === [l0_insertErr0EnsuresViolation]=== [2018-01-21 05:41:02,528 INFO L82 PathProgramCache]: Analyzing trace with hash -312164600, now seen corresponding path program 1 times [2018-01-21 05:41:02,528 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:41:02,529 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:41:02,530 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:41:02,530 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:41:02,530 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:41:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:41:02,543 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:41:02,567 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-01-21 05:41:02,568 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:41:02,568 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:41:02,568 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-01-21 05:41:02,568 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 05:41:02,569 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:41:02,569 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 05:41:02,581 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:41:02,581 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 05:41:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:41:02,633 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 05:41:02,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:41:02,641 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 05:41:02,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:41:02,726 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:41:02,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-01-21 05:41:02,727 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:41:02,727 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 05:41:02,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 05:41:02,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 05:41:02,727 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 2 states. [2018-01-21 05:41:02,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:41:02,745 INFO L93 Difference]: Finished difference Result 334 states and 402 transitions. [2018-01-21 05:41:02,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 05:41:02,746 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 35 [2018-01-21 05:41:02,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:41:02,748 INFO L225 Difference]: With dead ends: 334 [2018-01-21 05:41:02,748 INFO L226 Difference]: Without dead ends: 93 [2018-01-21 05:41:02,749 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 05:41:02,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-01-21 05:41:02,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-01-21 05:41:02,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-01-21 05:41:02,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2018-01-21 05:41:02,760 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 35 [2018-01-21 05:41:02,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:41:02,762 INFO L432 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2018-01-21 05:41:02,762 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 05:41:02,762 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2018-01-21 05:41:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-01-21 05:41:02,765 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:41:02,766 INFO L322 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:41:02,766 INFO L371 AbstractCegarLoop]: === Iteration 2 === [l0_insertErr0EnsuresViolation]=== [2018-01-21 05:41:02,766 INFO L82 PathProgramCache]: Analyzing trace with hash -311781063, now seen corresponding path program 1 times [2018-01-21 05:41:02,766 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:41:02,767 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:41:02,767 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:41:02,767 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:41:02,768 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:41:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:41:02,791 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:41:02,855 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-01-21 05:41:02,855 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:41:02,855 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:41:02,855 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-01-21 05:41:02,856 INFO L201 CegarAbsIntRunner]: [45], [85], [87], [91], [94], [97], [103], [104], [105], [106], [108], [109], [115], [116], [117], [119], [123], [126], [129], [135], [136], [137], [138], [139], [141], [143], [147], [150], [153], [159], [160], [161], [162], [163], [165], [167], [171], [174], [177], [183], [184], [185], [186], [187], [189], [190], [191], [193], [194], [196], [198], [200], [201], [202], [203], [204], [205], [206], [208], [210], [213], [215], [217], [218], [219], [220], [274], [280], [281], [282], [283], [284], [285], [286], [287], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [306], [307], [308] [2018-01-21 05:41:02,859 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:41:02,860 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown