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/svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/memsafety/test-0234_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 13:06:00,108 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 13:06:00,110 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 13:06:00,125 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 13:06:00,125 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 13:06:00,126 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 13:06:00,127 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 13:06:00,129 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 13:06:00,131 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 13:06:00,132 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 13:06:00,133 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 13:06:00,133 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 13:06:00,134 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 13:06:00,135 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 13:06:00,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 13:06:00,139 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 13:06:00,141 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 13:06:00,143 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 13:06:00,144 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 13:06:00,145 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 13:06:00,148 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 13:06:00,148 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 13:06:00,148 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 13:06:00,149 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 13:06:00,150 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 13:06:00,152 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 13:06:00,152 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 13:06:00,152 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 13:06:00,153 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 13:06:00,153 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 13:06:00,153 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 13:06:00,154 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf [2018-01-24 13:06:00,163 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 13:06:00,163 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 13:06:00,164 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 13:06:00,164 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 13:06:00,164 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 13:06:00,164 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 13:06:00,164 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 13:06:00,165 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 13:06:00,165 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 13:06:00,165 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 13:06:00,165 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 13:06:00,165 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 13:06:00,165 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 13:06:00,165 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 13:06:00,166 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 13:06:00,166 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 13:06:00,166 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 13:06:00,166 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 13:06:00,166 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 13:06:00,166 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 13:06:00,166 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 13:06:00,167 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 13:06:00,167 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 13:06:00,167 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 13:06:00,167 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 13:06:00,167 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 13:06:00,168 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 13:06:00,168 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 13:06:00,168 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-01-24 13:06:00,168 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 13:06:00,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 13:06:00,168 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 13:06:00,169 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 13:06:00,169 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 13:06:00,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 13:06:00,214 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 13:06:00,217 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 13:06:00,218 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 13:06:00,219 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 13:06:00,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0234_true-valid-memsafety.i [2018-01-24 13:06:00,393 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 13:06:00,398 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 13:06:00,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 13:06:00,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 13:06:00,404 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 13:06:00,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:06:00" (1/1) ... [2018-01-24 13:06:00,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4430c394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00, skipping insertion in model container [2018-01-24 13:06:00,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:06:00" (1/1) ... [2018-01-24 13:06:00,420 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:06:00,464 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:06:00,590 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:06:00,618 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:06:00,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00 WrapperNode [2018-01-24 13:06:00,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 13:06:00,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 13:06:00,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 13:06:00,632 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 13:06:00,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00" (1/1) ... [2018-01-24 13:06:00,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00" (1/1) ... [2018-01-24 13:06:00,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00" (1/1) ... [2018-01-24 13:06:00,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00" (1/1) ... [2018-01-24 13:06:00,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00" (1/1) ... [2018-01-24 13:06:00,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00" (1/1) ... [2018-01-24 13:06:00,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00" (1/1) ... [2018-01-24 13:06:00,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 13:06:00,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 13:06:00,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 13:06:00,682 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 13:06:00,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00" (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 [2018-01-24 13:06:00,737 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 13:06:00,737 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 13:06:00,737 INFO L136 BoogieDeclarations]: Found implementation of procedure calloc_model [2018-01-24 13:06:00,737 INFO L136 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2018-01-24 13:06:00,737 INFO L136 BoogieDeclarations]: Found implementation of procedure l4_insert [2018-01-24 13:06:00,737 INFO L136 BoogieDeclarations]: Found implementation of procedure l3_insert [2018-01-24 13:06:00,737 INFO L136 BoogieDeclarations]: Found implementation of procedure l2_insert [2018-01-24 13:06:00,737 INFO L136 BoogieDeclarations]: Found implementation of procedure l1_insert [2018-01-24 13:06:00,738 INFO L136 BoogieDeclarations]: Found implementation of procedure l0_insert [2018-01-24 13:06:00,738 INFO L136 BoogieDeclarations]: Found implementation of procedure l4_destroy [2018-01-24 13:06:00,738 INFO L136 BoogieDeclarations]: Found implementation of procedure l3_destroy [2018-01-24 13:06:00,738 INFO L136 BoogieDeclarations]: Found implementation of procedure l2_destroy [2018-01-24 13:06:00,738 INFO L136 BoogieDeclarations]: Found implementation of procedure l1_destroy [2018-01-24 13:06:00,738 INFO L136 BoogieDeclarations]: Found implementation of procedure l0_destroy [2018-01-24 13:06:00,738 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 13:06:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 13:06:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 13:06:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 13:06:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 13:06:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 13:06:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-24 13:06:00,740 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-24 13:06:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 13:06:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 13:06:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-24 13:06:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-24 13:06:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure calloc_model [2018-01-24 13:06:00,741 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 13:06:00,741 INFO L128 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2018-01-24 13:06:00,741 INFO L128 BoogieDeclarations]: Found specification of procedure l4_insert [2018-01-24 13:06:00,741 INFO L128 BoogieDeclarations]: Found specification of procedure l3_insert [2018-01-24 13:06:00,741 INFO L128 BoogieDeclarations]: Found specification of procedure l2_insert [2018-01-24 13:06:00,741 INFO L128 BoogieDeclarations]: Found specification of procedure l1_insert [2018-01-24 13:06:00,741 INFO L128 BoogieDeclarations]: Found specification of procedure l0_insert [2018-01-24 13:06:00,742 INFO L128 BoogieDeclarations]: Found specification of procedure l4_destroy [2018-01-24 13:06:00,742 INFO L128 BoogieDeclarations]: Found specification of procedure l3_destroy [2018-01-24 13:06:00,742 INFO L128 BoogieDeclarations]: Found specification of procedure l2_destroy [2018-01-24 13:06:00,742 INFO L128 BoogieDeclarations]: Found specification of procedure l1_destroy [2018-01-24 13:06:00,742 INFO L128 BoogieDeclarations]: Found specification of procedure l0_destroy [2018-01-24 13:06:00,742 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 13:06:00,742 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 13:06:00,742 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 13:06:01,124 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-24 13:06:01,407 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 13:06:01,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:06:01 BoogieIcfgContainer [2018-01-24 13:06:01,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 13:06:01,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 13:06:01,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 13:06:01,410 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 13:06:01,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 01:06:00" (1/3) ... [2018-01-24 13:06:01,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7552a162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 01:06:01, skipping insertion in model container [2018-01-24 13:06:01,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:06:00" (2/3) ... [2018-01-24 13:06:01,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7552a162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 01:06:01, skipping insertion in model container [2018-01-24 13:06:01,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:06:01" (3/3) ... [2018-01-24 13:06:01,414 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0234_true-valid-memsafety.i [2018-01-24 13:06:01,420 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 13:06:01,427 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2018-01-24 13:06:01,467 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 13:06:01,467 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 13:06:01,467 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 13:06:01,468 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 13:06:01,468 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 13:06:01,468 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 13:06:01,468 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 13:06:01,468 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 13:06:01,469 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 13:06:01,489 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states. [2018-01-24 13:06:01,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 13:06:01,494 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:06:01,495 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 13:06:01,496 INFO L371 AbstractCegarLoop]: === Iteration 1 === [l3_destroyErr0RequiresViolation, l3_destroyErr3RequiresViolation, l3_destroyErr1RequiresViolation, l3_destroyErr2RequiresViolation, l3_destroyErr4RequiresViolation, l3_destroyErr5RequiresViolation, l0_insertErr3RequiresViolation, l0_insertErr1RequiresViolation, l0_insertErr5RequiresViolation, l0_insertErr2RequiresViolation, l0_insertErr4RequiresViolation, l0_insertErr0RequiresViolation, l4_destroyErr4RequiresViolation, l4_destroyErr6RequiresViolation, l4_destroyErr2RequiresViolation, l4_destroyErr3RequiresViolation, l4_destroyErr1RequiresViolation, l4_destroyErr7RequiresViolation, l4_destroyErr0RequiresViolation, l4_destroyErr5RequiresViolation, l2_insertErr3RequiresViolation, l2_insertErr5RequiresViolation, l2_insertErr0RequiresViolation, l2_insertErr1RequiresViolation, l2_insertErr4RequiresViolation, l2_insertErr2RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, l3_insertErr4RequiresViolation, l3_insertErr0RequiresViolation, l3_insertErr5RequiresViolation, l3_insertErr3RequiresViolation, l3_insertErr1RequiresViolation, l3_insertErr2RequiresViolation, l1_insertErr4RequiresViolation, l1_insertErr0RequiresViolation, l1_insertErr2RequiresViolation, l1_insertErr3RequiresViolation, l1_insertErr1RequiresViolation, l1_insertErr5RequiresViolation, l0_destroyErr5RequiresViolation, l0_destroyErr3RequiresViolation, l0_destroyErr1RequiresViolation, l0_destroyErr0RequiresViolation, l0_destroyErr4RequiresViolation, l0_destroyErr2RequiresViolation, calloc_modelErr0RequiresViolation, calloc_modelErr1RequiresViolation, l4_insertErr5RequiresViolation, l4_insertErr3RequiresViolation, l4_insertErr4RequiresViolation, l4_insertErr6RequiresViolation, l4_insertErr2RequiresViolation, l4_insertErr0RequiresViolation, l4_insertErr1RequiresViolation, l4_insertErr7RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, l1_destroyErr2RequiresViolation, l1_destroyErr4RequiresViolation, l1_destroyErr0RequiresViolation, l1_destroyErr1RequiresViolation, l1_destroyErr5RequiresViolation, l1_destroyErr3RequiresViolation, l2_destroyErr1RequiresViolation, l2_destroyErr0RequiresViolation, l2_destroyErr2RequiresViolation, l2_destroyErr4RequiresViolation, l2_destroyErr5RequiresViolation, l2_destroyErr3RequiresViolation]=== [2018-01-24 13:06:01,499 INFO L82 PathProgramCache]: Analyzing trace with hash 12092192, now seen corresponding path program 1 times [2018-01-24 13:06:01,501 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:06:01,541 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:01,541 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:01,541 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:01,542 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:06:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:06:01,584 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:06:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 13:06:01,646 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:06:01,646 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 13:06:01,647 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:06:01,649 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 13:06:01,741 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 13:06:01,742 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 13:06:01,744 INFO L87 Difference]: Start difference. First operand 231 states. Second operand 3 states. [2018-01-24 13:06:01,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:06:01,985 INFO L93 Difference]: Finished difference Result 483 states and 565 transitions. [2018-01-24 13:06:01,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 13:06:01,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 13:06:01,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:06:02,002 INFO L225 Difference]: With dead ends: 483 [2018-01-24 13:06:02,002 INFO L226 Difference]: Without dead ends: 257 [2018-01-24 13:06:02,009 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 13:06:02,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-01-24 13:06:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 226. [2018-01-24 13:06:02,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-01-24 13:06:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 241 transitions. [2018-01-24 13:06:02,068 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 241 transitions. Word has length 4 [2018-01-24 13:06:02,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:06:02,069 INFO L432 AbstractCegarLoop]: Abstraction has 226 states and 241 transitions. [2018-01-24 13:06:02,069 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 13:06:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 241 transitions. [2018-01-24 13:06:02,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 13:06:02,070 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:06:02,070 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 13:06:02,070 INFO L371 AbstractCegarLoop]: === Iteration 2 === [l3_destroyErr0RequiresViolation, l3_destroyErr3RequiresViolation, l3_destroyErr1RequiresViolation, l3_destroyErr2RequiresViolation, l3_destroyErr4RequiresViolation, l3_destroyErr5RequiresViolation, l0_insertErr3RequiresViolation, l0_insertErr1RequiresViolation, l0_insertErr5RequiresViolation, l0_insertErr2RequiresViolation, l0_insertErr4RequiresViolation, l0_insertErr0RequiresViolation, l4_destroyErr4RequiresViolation, l4_destroyErr6RequiresViolation, l4_destroyErr2RequiresViolation, l4_destroyErr3RequiresViolation, l4_destroyErr1RequiresViolation, l4_destroyErr7RequiresViolation, l4_destroyErr0RequiresViolation, l4_destroyErr5RequiresViolation, l2_insertErr3RequiresViolation, l2_insertErr5RequiresViolation, l2_insertErr0RequiresViolation, l2_insertErr1RequiresViolation, l2_insertErr4RequiresViolation, l2_insertErr2RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, l3_insertErr4RequiresViolation, l3_insertErr0RequiresViolation, l3_insertErr5RequiresViolation, l3_insertErr3RequiresViolation, l3_insertErr1RequiresViolation, l3_insertErr2RequiresViolation, l1_insertErr4RequiresViolation, l1_insertErr0RequiresViolation, l1_insertErr2RequiresViolation, l1_insertErr3RequiresViolation, l1_insertErr1RequiresViolation, l1_insertErr5RequiresViolation, l0_destroyErr5RequiresViolation, l0_destroyErr3RequiresViolation, l0_destroyErr1RequiresViolation, l0_destroyErr0RequiresViolation, l0_destroyErr4RequiresViolation, l0_destroyErr2RequiresViolation, calloc_modelErr0RequiresViolation, calloc_modelErr1RequiresViolation, l4_insertErr5RequiresViolation, l4_insertErr3RequiresViolation, l4_insertErr4RequiresViolation, l4_insertErr6RequiresViolation, l4_insertErr2RequiresViolation, l4_insertErr0RequiresViolation, l4_insertErr1RequiresViolation, l4_insertErr7RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, l1_destroyErr2RequiresViolation, l1_destroyErr4RequiresViolation, l1_destroyErr0RequiresViolation, l1_destroyErr1RequiresViolation, l1_destroyErr5RequiresViolation, l1_destroyErr3RequiresViolation, l2_destroyErr1RequiresViolation, l2_destroyErr0RequiresViolation, l2_destroyErr2RequiresViolation, l2_destroyErr4RequiresViolation, l2_destroyErr5RequiresViolation, l2_destroyErr3RequiresViolation]=== [2018-01-24 13:06:02,070 INFO L82 PathProgramCache]: Analyzing trace with hash 12092193, now seen corresponding path program 1 times [2018-01-24 13:06:02,070 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:06:02,071 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:02,071 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:02,071 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:02,071 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:06:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:06:02,087 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:06:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 13:06:02,154 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:06:02,154 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 13:06:02,154 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:06:02,155 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 13:06:02,156 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 13:06:02,156 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 13:06:02,156 INFO L87 Difference]: Start difference. First operand 226 states and 241 transitions. Second operand 3 states. [2018-01-24 13:06:02,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:06:02,318 INFO L93 Difference]: Finished difference Result 234 states and 252 transitions. [2018-01-24 13:06:02,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 13:06:02,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 13:06:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:06:02,321 INFO L225 Difference]: With dead ends: 234 [2018-01-24 13:06:02,321 INFO L226 Difference]: Without dead ends: 233 [2018-01-24 13:06:02,327 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 13:06:02,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-01-24 13:06:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 225. [2018-01-24 13:06:02,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-01-24 13:06:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 240 transitions. [2018-01-24 13:06:02,350 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 240 transitions. Word has length 4 [2018-01-24 13:06:02,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:06:02,350 INFO L432 AbstractCegarLoop]: Abstraction has 225 states and 240 transitions. [2018-01-24 13:06:02,350 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 13:06:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 240 transitions. [2018-01-24 13:06:02,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 13:06:02,351 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:06:02,351 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:06:02,352 INFO L371 AbstractCegarLoop]: === Iteration 3 === [l3_destroyErr0RequiresViolation, l3_destroyErr3RequiresViolation, l3_destroyErr1RequiresViolation, l3_destroyErr2RequiresViolation, l3_destroyErr4RequiresViolation, l3_destroyErr5RequiresViolation, l0_insertErr3RequiresViolation, l0_insertErr1RequiresViolation, l0_insertErr5RequiresViolation, l0_insertErr2RequiresViolation, l0_insertErr4RequiresViolation, l0_insertErr0RequiresViolation, l4_destroyErr4RequiresViolation, l4_destroyErr6RequiresViolation, l4_destroyErr2RequiresViolation, l4_destroyErr3RequiresViolation, l4_destroyErr1RequiresViolation, l4_destroyErr7RequiresViolation, l4_destroyErr0RequiresViolation, l4_destroyErr5RequiresViolation, l2_insertErr3RequiresViolation, l2_insertErr5RequiresViolation, l2_insertErr0RequiresViolation, l2_insertErr1RequiresViolation, l2_insertErr4RequiresViolation, l2_insertErr2RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, l3_insertErr4RequiresViolation, l3_insertErr0RequiresViolation, l3_insertErr5RequiresViolation, l3_insertErr3RequiresViolation, l3_insertErr1RequiresViolation, l3_insertErr2RequiresViolation, l1_insertErr4RequiresViolation, l1_insertErr0RequiresViolation, l1_insertErr2RequiresViolation, l1_insertErr3RequiresViolation, l1_insertErr1RequiresViolation, l1_insertErr5RequiresViolation, l0_destroyErr5RequiresViolation, l0_destroyErr3RequiresViolation, l0_destroyErr1RequiresViolation, l0_destroyErr0RequiresViolation, l0_destroyErr4RequiresViolation, l0_destroyErr2RequiresViolation, calloc_modelErr0RequiresViolation, calloc_modelErr1RequiresViolation, l4_insertErr5RequiresViolation, l4_insertErr3RequiresViolation, l4_insertErr4RequiresViolation, l4_insertErr6RequiresViolation, l4_insertErr2RequiresViolation, l4_insertErr0RequiresViolation, l4_insertErr1RequiresViolation, l4_insertErr7RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, l1_destroyErr2RequiresViolation, l1_destroyErr4RequiresViolation, l1_destroyErr0RequiresViolation, l1_destroyErr1RequiresViolation, l1_destroyErr5RequiresViolation, l1_destroyErr3RequiresViolation, l2_destroyErr1RequiresViolation, l2_destroyErr0RequiresViolation, l2_destroyErr2RequiresViolation, l2_destroyErr4RequiresViolation, l2_destroyErr5RequiresViolation, l2_destroyErr3RequiresViolation]=== [2018-01-24 13:06:02,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1806231127, now seen corresponding path program 1 times [2018-01-24 13:06:02,352 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:06:02,353 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:02,353 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:02,353 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:02,354 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:06:02,375 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-24 13:06:02,375 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-24 13:06:02,375 INFO L164 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/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 [2018-01-24 13:06:02,383 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:02,384 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-24 13:06:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:06:02,415 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 13:06:02,415 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 13:06:02,415 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/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 [2018-01-24 13:06:02,421 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:02,421 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 13:06:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:06:02,449 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 13:06:02,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 13:06:02,495 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 13:06:02,496 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 13:06:02,497 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-24 13:06:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 13:06:02,503 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 13:06:02,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 13:06:02,533 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:06:02,534 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-01-24 13:06:02,534 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:06:02,534 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 13:06:02,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 13:06:02,534 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 13:06:02,534 INFO L87 Difference]: Start difference. First operand 225 states and 240 transitions. Second operand 4 states. [2018-01-24 13:06:02,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:06:02,703 INFO L93 Difference]: Finished difference Result 225 states and 240 transitions. [2018-01-24 13:06:02,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 13:06:02,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-01-24 13:06:02,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:06:02,706 INFO L225 Difference]: With dead ends: 225 [2018-01-24 13:06:02,706 INFO L226 Difference]: Without dead ends: 224 [2018-01-24 13:06:02,706 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 13:06:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-01-24 13:06:02,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2018-01-24 13:06:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-01-24 13:06:02,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 239 transitions. [2018-01-24 13:06:02,724 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 239 transitions. Word has length 17 [2018-01-24 13:06:02,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:06:02,725 INFO L432 AbstractCegarLoop]: Abstraction has 224 states and 239 transitions. [2018-01-24 13:06:02,725 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 13:06:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 239 transitions. [2018-01-24 13:06:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 13:06:02,726 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:06:02,726 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:06:02,726 INFO L371 AbstractCegarLoop]: === Iteration 4 === [l3_destroyErr0RequiresViolation, l3_destroyErr3RequiresViolation, l3_destroyErr1RequiresViolation, l3_destroyErr2RequiresViolation, l3_destroyErr4RequiresViolation, l3_destroyErr5RequiresViolation, l0_insertErr3RequiresViolation, l0_insertErr1RequiresViolation, l0_insertErr5RequiresViolation, l0_insertErr2RequiresViolation, l0_insertErr4RequiresViolation, l0_insertErr0RequiresViolation, l4_destroyErr4RequiresViolation, l4_destroyErr6RequiresViolation, l4_destroyErr2RequiresViolation, l4_destroyErr3RequiresViolation, l4_destroyErr1RequiresViolation, l4_destroyErr7RequiresViolation, l4_destroyErr0RequiresViolation, l4_destroyErr5RequiresViolation, l2_insertErr3RequiresViolation, l2_insertErr5RequiresViolation, l2_insertErr0RequiresViolation, l2_insertErr1RequiresViolation, l2_insertErr4RequiresViolation, l2_insertErr2RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, l3_insertErr4RequiresViolation, l3_insertErr0RequiresViolation, l3_insertErr5RequiresViolation, l3_insertErr3RequiresViolation, l3_insertErr1RequiresViolation, l3_insertErr2RequiresViolation, l1_insertErr4RequiresViolation, l1_insertErr0RequiresViolation, l1_insertErr2RequiresViolation, l1_insertErr3RequiresViolation, l1_insertErr1RequiresViolation, l1_insertErr5RequiresViolation, l0_destroyErr5RequiresViolation, l0_destroyErr3RequiresViolation, l0_destroyErr1RequiresViolation, l0_destroyErr0RequiresViolation, l0_destroyErr4RequiresViolation, l0_destroyErr2RequiresViolation, calloc_modelErr0RequiresViolation, calloc_modelErr1RequiresViolation, l4_insertErr5RequiresViolation, l4_insertErr3RequiresViolation, l4_insertErr4RequiresViolation, l4_insertErr6RequiresViolation, l4_insertErr2RequiresViolation, l4_insertErr0RequiresViolation, l4_insertErr1RequiresViolation, l4_insertErr7RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, l1_destroyErr2RequiresViolation, l1_destroyErr4RequiresViolation, l1_destroyErr0RequiresViolation, l1_destroyErr1RequiresViolation, l1_destroyErr5RequiresViolation, l1_destroyErr3RequiresViolation, l2_destroyErr1RequiresViolation, l2_destroyErr0RequiresViolation, l2_destroyErr2RequiresViolation, l2_destroyErr4RequiresViolation, l2_destroyErr5RequiresViolation, l2_destroyErr3RequiresViolation]=== [2018-01-24 13:06:02,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1806231128, now seen corresponding path program 1 times [2018-01-24 13:06:02,727 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:06:02,728 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:02,728 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:02,728 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:02,728 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:06:02,744 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-24 13:06:02,745 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-24 13:06:02,745 INFO L164 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-24 13:06:02,757 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:02,757 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-24 13:06:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:06:02,788 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 13:06:02,789 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 13:06:02,789 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/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 [2018-01-24 13:06:02,794 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:02,794 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 13:06:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:06:02,818 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 13:06:02,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-01-24 13:06:02,832 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 13:06:02,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2018-01-24 13:06:02,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 13:06:02,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 13:06:02,871 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:46, output treesize:44 [2018-01-24 13:06:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 13:06:02,910 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 13:06:02,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 13:06:02,998 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:06:02,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-01-24 13:06:02,998 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:06:02,999 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 13:06:02,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 13:06:02,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 13:06:02,999 INFO L87 Difference]: Start difference. First operand 224 states and 239 transitions. Second operand 4 states. [2018-01-24 13:06:03,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:06:03,180 INFO L93 Difference]: Finished difference Result 224 states and 239 transitions. [2018-01-24 13:06:03,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 13:06:03,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-01-24 13:06:03,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:06:03,182 INFO L225 Difference]: With dead ends: 224 [2018-01-24 13:06:03,182 INFO L226 Difference]: Without dead ends: 223 [2018-01-24 13:06:03,182 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-24 13:06:03,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-01-24 13:06:03,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2018-01-24 13:06:03,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-01-24 13:06:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2018-01-24 13:06:03,198 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 17 [2018-01-24 13:06:03,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:06:03,198 INFO L432 AbstractCegarLoop]: Abstraction has 223 states and 238 transitions. [2018-01-24 13:06:03,198 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 13:06:03,198 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 238 transitions. [2018-01-24 13:06:03,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-01-24 13:06:03,202 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:06:03,203 INFO L322 BasicCegarLoop]: trace histogram [6, 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] [2018-01-24 13:06:03,203 INFO L371 AbstractCegarLoop]: === Iteration 5 === [l3_destroyErr0RequiresViolation, l3_destroyErr3RequiresViolation, l3_destroyErr1RequiresViolation, l3_destroyErr2RequiresViolation, l3_destroyErr4RequiresViolation, l3_destroyErr5RequiresViolation, l0_insertErr3RequiresViolation, l0_insertErr1RequiresViolation, l0_insertErr5RequiresViolation, l0_insertErr2RequiresViolation, l0_insertErr4RequiresViolation, l0_insertErr0RequiresViolation, l4_destroyErr4RequiresViolation, l4_destroyErr6RequiresViolation, l4_destroyErr2RequiresViolation, l4_destroyErr3RequiresViolation, l4_destroyErr1RequiresViolation, l4_destroyErr7RequiresViolation, l4_destroyErr0RequiresViolation, l4_destroyErr5RequiresViolation, l2_insertErr3RequiresViolation, l2_insertErr5RequiresViolation, l2_insertErr0RequiresViolation, l2_insertErr1RequiresViolation, l2_insertErr4RequiresViolation, l2_insertErr2RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, l3_insertErr4RequiresViolation, l3_insertErr0RequiresViolation, l3_insertErr5RequiresViolation, l3_insertErr3RequiresViolation, l3_insertErr1RequiresViolation, l3_insertErr2RequiresViolation, l1_insertErr4RequiresViolation, l1_insertErr0RequiresViolation, l1_insertErr2RequiresViolation, l1_insertErr3RequiresViolation, l1_insertErr1RequiresViolation, l1_insertErr5RequiresViolation, l0_destroyErr5RequiresViolation, l0_destroyErr3RequiresViolation, l0_destroyErr1RequiresViolation, l0_destroyErr0RequiresViolation, l0_destroyErr4RequiresViolation, l0_destroyErr2RequiresViolation, calloc_modelErr0RequiresViolation, calloc_modelErr1RequiresViolation, l4_insertErr5RequiresViolation, l4_insertErr3RequiresViolation, l4_insertErr4RequiresViolation, l4_insertErr6RequiresViolation, l4_insertErr2RequiresViolation, l4_insertErr0RequiresViolation, l4_insertErr1RequiresViolation, l4_insertErr7RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, l1_destroyErr2RequiresViolation, l1_destroyErr4RequiresViolation, l1_destroyErr0RequiresViolation, l1_destroyErr1RequiresViolation, l1_destroyErr5RequiresViolation, l1_destroyErr3RequiresViolation, l2_destroyErr1RequiresViolation, l2_destroyErr0RequiresViolation, l2_destroyErr2RequiresViolation, l2_destroyErr4RequiresViolation, l2_destroyErr5RequiresViolation, l2_destroyErr3RequiresViolation]=== [2018-01-24 13:06:03,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1639542084, now seen corresponding path program 1 times [2018-01-24 13:06:03,203 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:06:03,204 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:03,204 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:03,204 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:06:03,204 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:06:03,228 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-24 13:06:03,229 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-24 13:06:03,229 INFO L164 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-24 13:06:03,238 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:03,239 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-24 13:06:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:06:03,329 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 13:06:03,329 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 13:06:03,330 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 13:06:03,335 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:06:03,335 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 13:06:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:06:03,463 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 13:06:03,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 13:06:03,481 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 13:06:03,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 13:06:03,483 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-24 13:06:03,574 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|calloc_model_#t~malloc0.base| Int)) (and (= 0 (select |c_old(#valid)| |calloc_model_#t~malloc0.base|)) (= |c_#valid| (store |c_old(#valid)| |calloc_model_#t~malloc0.base| 1)))) is different from true [2018-01-24 13:06:03,579 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 13:06:03,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-01-24 13:06:03,581 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 13:06:03,583 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-24 13:06:03,583 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-01-24 13:06:03,596 WARN L1029 $PredicateComparison]: unable to prove that (and (exists ((v_calloc_model_~ptr~5.base_BEFORE_CALL_1 Int)) (= 1 (select |c_#valid| v_calloc_model_~ptr~5.base_BEFORE_CALL_1))) (exists ((|calloc_model_#t~malloc0.base| Int)) (and (= 0 (select |c_old(#valid)| |calloc_model_#t~malloc0.base|)) (= |c_#valid| (store |c_old(#valid)| |calloc_model_#t~malloc0.base| 1))))) is different from true [2018-01-24 13:06:03,627 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 13:06:03,628 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 13:06:03,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-01-24 13:06:03,629 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 13:06:03,636 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 13:06:03,636 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:20 [2018-01-24 13:06:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 9 not checked. [2018-01-24 13:06:03,706 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 13:06:05,907 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 9977 column 11: unknown constant v_calloc_model_#t~malloc0.base_10 at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1362) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:582) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:146) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:200) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.IncrementalPlicationChecker.checkPlication(IncrementalPlicationChecker.java:120) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.checkEqualityStatus(Elim1Store.java:667) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.analyzeIndexEqualities(Elim1Store.java:759) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:300) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-24 13:06:05,910 INFO L168 Benchmark]: Toolchain (without parser) took 5516.96 ms. Allocated memory was 299.4 MB in the beginning and 478.2 MB in the end (delta: 178.8 MB). Free memory was 258.3 MB in the beginning and 357.8 MB in the end (delta: -99.5 MB). Peak memory consumption was 79.3 MB. Max. memory is 5.3 GB. [2018-01-24 13:06:05,911 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 299.4 MB. Free memory is still 265.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:06:05,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.67 ms. Allocated memory is still 299.4 MB. Free memory was 258.3 MB in the beginning and 246.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-24 13:06:05,912 INFO L168 Benchmark]: Boogie Preprocessor took 49.41 ms. Allocated memory is still 299.4 MB. Free memory was 246.2 MB in the beginning and 243.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:06:05,913 INFO L168 Benchmark]: RCFGBuilder took 725.94 ms. Allocated memory is still 299.4 MB. Free memory was 243.2 MB in the beginning and 193.6 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 5.3 GB. [2018-01-24 13:06:05,913 INFO L168 Benchmark]: TraceAbstraction took 4501.34 ms. Allocated memory was 299.4 MB in the beginning and 478.2 MB in the end (delta: 178.8 MB). Free memory was 193.6 MB in the beginning and 357.8 MB in the end (delta: -164.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-24 13:06:05,916 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 299.4 MB. Free memory is still 265.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 232.67 ms. Allocated memory is still 299.4 MB. Free memory was 258.3 MB in the beginning and 246.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 49.41 ms. Allocated memory is still 299.4 MB. Free memory was 246.2 MB in the beginning and 243.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 725.94 ms. Allocated memory is still 299.4 MB. Free memory was 243.2 MB in the beginning and 193.6 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 4501.34 ms. Allocated memory was 299.4 MB in the beginning and 478.2 MB in the end (delta: 178.8 MB). Free memory was 193.6 MB in the beginning and 357.8 MB in the end (delta: -164.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 9977 column 11: unknown constant v_calloc_model_#t~malloc0.base_10 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 9977 column 11: unknown constant v_calloc_model_#t~malloc0.base_10: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1362) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0234_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_13-06-05-926.csv Received shutdown request...