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/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/memsafety/lockfree-3.1_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:55:08,206 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:55:08,207 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:55:08,217 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:55:08,217 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:55:08,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:55:08,218 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:55:08,220 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:55:08,221 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:55:08,221 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:55:08,222 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:55:08,222 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:55:08,222 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:55:08,223 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:55:08,223 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:55:08,225 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:55:08,226 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:55:08,227 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:55:08,227 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:55:08,228 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:55:08,229 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 10:55:08,230 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 10:55:08,230 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 10:55:08,230 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 10:55:08,231 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 10:55:08,232 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 10:55:08,232 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 10:55:08,232 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 10:55:08,232 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 10:55:08,232 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:55:08,233 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:55:08,233 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-02 10:55:08,240 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:55:08,240 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:55:08,241 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:55:08,241 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:55:08,241 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:55:08,241 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:55:08,242 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:55:08,242 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:55:08,242 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:55:08,242 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:55:08,242 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:55:08,242 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:55:08,242 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:55:08,242 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:55:08,242 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:55:08,243 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:55:08,243 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:55:08,243 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:55:08,243 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:55:08,243 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:55:08,243 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:55:08,243 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:55:08,243 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-02 10:55:08,244 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-02 10:55:08,244 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:55:08,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:55:08,274 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:55:08,277 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:55:08,278 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:55:08,278 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:55:08,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/lockfree-3.1_false-valid-memtrack.i [2018-02-02 10:55:08,422 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:55:08,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:55:08,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:55:08,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:55:08,430 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:55:08,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:55:08" (1/1) ... [2018-02-02 10:55:08,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59897e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08, skipping insertion in model container [2018-02-02 10:55:08,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:55:08" (1/1) ... [2018-02-02 10:55:08,444 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:55:08,471 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:55:08,574 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:55:08,588 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:55:08,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08 WrapperNode [2018-02-02 10:55:08,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:55:08,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:55:08,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:55:08,593 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:55:08,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08" (1/1) ... [2018-02-02 10:55:08,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08" (1/1) ... [2018-02-02 10:55:08,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08" (1/1) ... [2018-02-02 10:55:08,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08" (1/1) ... [2018-02-02 10:55:08,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08" (1/1) ... [2018-02-02 10:55:08,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08" (1/1) ... [2018-02-02 10:55:08,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08" (1/1) ... [2018-02-02 10:55:08,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:55:08,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:55:08,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:55:08,623 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:55:08,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-02 10:55:08,663 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:55:08,663 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:55:08,663 INFO L136 BoogieDeclarations]: Found implementation of procedure push [2018-02-02 10:55:08,663 INFO L136 BoogieDeclarations]: Found implementation of procedure pop [2018-02-02 10:55:08,663 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:55:08,663 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:55:08,663 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:55:08,663 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 10:55:08,663 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure push [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure pop [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:55:08,664 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:55:08,912 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:55:08,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:55:08 BoogieIcfgContainer [2018-02-02 10:55:08,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:55:08,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:55:08,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:55:08,916 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:55:08,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:55:08" (1/3) ... [2018-02-02 10:55:08,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cac531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:55:08, skipping insertion in model container [2018-02-02 10:55:08,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:55:08" (2/3) ... [2018-02-02 10:55:08,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cac531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:55:08, skipping insertion in model container [2018-02-02 10:55:08,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:55:08" (3/3) ... [2018-02-02 10:55:08,920 INFO L107 eAbstractionObserver]: Analyzing ICFG lockfree-3.1_false-valid-memtrack.i [2018-02-02 10:55:08,927 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:55:08,932 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-02-02 10:55:08,964 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:55:08,964 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:55:08,964 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-02 10:55:08,964 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:55:08,965 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:55:08,965 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:55:08,965 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:55:08,965 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:55:08,966 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:55:08,979 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-02-02 10:55:08,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-02 10:55:08,988 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:55:08,989 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:55:08,989 INFO L371 AbstractCegarLoop]: === Iteration 1 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-02-02 10:55:08,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1799126466, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:55:08,999 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:55:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:55:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:55:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:09,161 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:55:09,161 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:55:09,162 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:55:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:09,163 INFO L182 omatonBuilderFactory]: Interpolants [80#false, 84#(and (= ~t4.offset |old(~t4.offset)|) (= ~pc4 |old(~pc4)|) (= ~res4~0 |old(~res4~0)|) (= ~garbage.base |old(~garbage.base)|) (= ~garbage.offset |old(~garbage.offset)|) (= ~S.offset |old(~S.offset)|) (= ~S.base |old(~S.base)|) (= ~pc1 |old(~pc1)|) (= |#valid| |old(#valid)|) (= ~x1.base |old(~x1.base)|) (= ~t4.base |old(~t4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~x4.offset |old(~x4.offset)|) (= ~x1.offset |old(~x1.offset)|) (= ~x4.base |old(~x4.base)|) (= ~t1.offset |old(~t1.offset)|) (= ~t1.base |old(~t1.base)|)), 79#true] [2018-02-02 10:55:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:09,164 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 10:55:09,176 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 10:55:09,176 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:55:09,179 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states. [2018-02-02 10:55:09,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:55:09,408 INFO L93 Difference]: Finished difference Result 93 states and 116 transitions. [2018-02-02 10:55:09,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 10:55:09,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-02-02 10:55:09,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:55:09,422 INFO L225 Difference]: With dead ends: 93 [2018-02-02 10:55:09,422 INFO L226 Difference]: Without dead ends: 90 [2018-02-02 10:55:09,424 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:55:09,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-02-02 10:55:09,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 73. [2018-02-02 10:55:09,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-02-02 10:55:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-02-02 10:55:09,461 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 9 [2018-02-02 10:55:09,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:55:09,461 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-02-02 10:55:09,461 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 10:55:09,461 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-02-02 10:55:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-02 10:55:09,462 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:55:09,462 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:55:09,462 INFO L371 AbstractCegarLoop]: === Iteration 2 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-02-02 10:55:09,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1199640283, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:55:09,465 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:55:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:55:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:55:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:09,601 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:55:09,601 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:55:09,601 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:55:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:09,602 INFO L182 omatonBuilderFactory]: Interpolants [256#|main_#t~short13|, 257#(and (= ~t4.offset |old(~t4.offset)|) (= ~pc4 |old(~pc4)|) (= ~res4~0 |old(~res4~0)|) (= ~garbage.base |old(~garbage.base)|) (= ~garbage.offset |old(~garbage.offset)|) (= ~S.offset |old(~S.offset)|) (= ~S.base |old(~S.base)|) (= ~pc1 |old(~pc1)|) (= |#valid| |old(#valid)|) (= ~x1.base |old(~x1.base)|) (= ~t4.base |old(~t4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~x4.offset |old(~x4.offset)|) (= ~x1.offset |old(~x1.offset)|) (= ~x4.base |old(~x4.base)|) (= ~t1.offset |old(~t1.offset)|) (= ~t1.base |old(~t1.base)|)), 251#true, 252#false] [2018-02-02 10:55:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:09,603 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:55:09,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:55:09,603 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:55:09,604 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 4 states. [2018-02-02 10:55:10,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:55:10,063 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2018-02-02 10:55:10,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:55:10,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-02-02 10:55:10,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:55:10,064 INFO L225 Difference]: With dead ends: 92 [2018-02-02 10:55:10,064 INFO L226 Difference]: Without dead ends: 92 [2018-02-02 10:55:10,065 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:55:10,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-02-02 10:55:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 74. [2018-02-02 10:55:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-02-02 10:55:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-02-02 10:55:10,069 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 12 [2018-02-02 10:55:10,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:55:10,070 INFO L432 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-02-02 10:55:10,070 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:55:10,070 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-02-02 10:55:10,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-02 10:55:10,070 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:55:10,070 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:55:10,070 INFO L371 AbstractCegarLoop]: === Iteration 3 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-02-02 10:55:10,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1201487325, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:55:10,073 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:55:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:55:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:55:10,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:10,183 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:55:10,183 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:55:10,183 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:55:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:10,184 INFO L182 omatonBuilderFactory]: Interpolants [432#(and (= ~t4.offset |old(~t4.offset)|) (= ~pc4 |old(~pc4)|) (= ~res4~0 |old(~res4~0)|) (= ~garbage.base |old(~garbage.base)|) (= ~garbage.offset |old(~garbage.offset)|) (= ~S.offset |old(~S.offset)|) (= ~S.base |old(~S.base)|) (= ~pc1 |old(~pc1)|) (= |#valid| |old(#valid)|) (= ~x1.base |old(~x1.base)|) (= ~t4.base |old(~t4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~x4.offset |old(~x4.offset)|) (= ~x1.offset |old(~x1.offset)|) (= ~x4.base |old(~x4.base)|) (= ~t1.offset |old(~t1.offset)|) (= ~t1.base |old(~t1.base)|)), 426#true, 427#false, 431#(and (= 0 ~garbage.base) (= 0 ~garbage.offset))] [2018-02-02 10:55:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:10,184 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:55:10,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:55:10,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:55:10,185 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand 4 states. [2018-02-02 10:55:10,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:55:10,378 INFO L93 Difference]: Finished difference Result 143 states and 184 transitions. [2018-02-02 10:55:10,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:55:10,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-02-02 10:55:10,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:55:10,380 INFO L225 Difference]: With dead ends: 143 [2018-02-02 10:55:10,380 INFO L226 Difference]: Without dead ends: 143 [2018-02-02 10:55:10,380 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:55:10,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-02-02 10:55:10,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 114. [2018-02-02 10:55:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-02-02 10:55:10,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2018-02-02 10:55:10,390 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 12 [2018-02-02 10:55:10,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:55:10,390 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2018-02-02 10:55:10,391 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:55:10,391 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2018-02-02 10:55:10,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 10:55:10,391 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:55:10,391 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:55:10,391 INFO L371 AbstractCegarLoop]: === Iteration 4 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-02-02 10:55:10,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1408600152, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:55:10,394 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:55:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:55:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:55:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:10,494 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:55:10,494 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:55:10,494 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:55:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:10,495 INFO L182 omatonBuilderFactory]: Interpolants [692#true, 693#false, 697#(= |#valid| |old(#valid)|), 698#(and (= ~t4.offset |old(~t4.offset)|) (= ~pc4 |old(~pc4)|) (= ~res4~0 |old(~res4~0)|) (= ~garbage.base |old(~garbage.base)|) (= ~garbage.offset |old(~garbage.offset)|) (= ~S.offset |old(~S.offset)|) (= ~S.base |old(~S.base)|) (= ~pc1 |old(~pc1)|) (= |#valid| |old(#valid)|) (= ~x1.base |old(~x1.base)|) (= ~t4.base |old(~t4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~x4.offset |old(~x4.offset)|) (= ~x1.offset |old(~x1.offset)|) (= ~x4.base |old(~x4.base)|) (= ~t1.offset |old(~t1.offset)|) (= ~t1.base |old(~t1.base)|))] [2018-02-02 10:55:10,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:55:10,495 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:55:10,495 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:55:10,495 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:55:10,496 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand 4 states. [2018-02-02 10:55:10,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:55:10,631 INFO L93 Difference]: Finished difference Result 158 states and 223 transitions. [2018-02-02 10:55:10,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 10:55:10,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-02-02 10:55:10,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:55:10,635 INFO L225 Difference]: With dead ends: 158 [2018-02-02 10:55:10,635 INFO L226 Difference]: Without dead ends: 151 [2018-02-02 10:55:10,635 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:55:10,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-02-02 10:55:10,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 135. [2018-02-02 10:55:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-02-02 10:55:10,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 192 transitions. [2018-02-02 10:55:10,645 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 192 transitions. Word has length 13 [2018-02-02 10:55:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:55:10,645 INFO L432 AbstractCegarLoop]: Abstraction has 135 states and 192 transitions. [2018-02-02 10:55:10,645 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:55:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 192 transitions. [2018-02-02 10:55:10,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:55:10,645 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:55:10,645 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:55:10,645 INFO L371 AbstractCegarLoop]: === Iteration 5 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-02-02 10:55:10,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1628464921, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:55:10,648 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:55:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:55:10,681 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: Unsupported proof rule: (let ((a!1 (= (and (not |push_#t~switch1_11|) (not (= |old(~pc1)_10| 2)) false) false))) (rewrite a!1)) [2018-02-02 10:55:10,682 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 210 column 352: theory not supported by interpolation or bad proof at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) 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.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) 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:397) 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:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) 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) [2018-02-02 10:55:10,685 INFO L168 Benchmark]: Toolchain (without parser) took 2262.27 ms. Allocated memory was 403.2 MB in the beginning and 611.8 MB in the end (delta: 208.7 MB). Free memory was 359.9 MB in the beginning and 450.6 MB in the end (delta: -90.7 MB). Peak memory consumption was 118.0 MB. Max. memory is 5.3 GB. [2018-02-02 10:55:10,688 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 403.2 MB. Free memory is still 366.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:55:10,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.07 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 349.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:55:10,689 INFO L168 Benchmark]: Boogie Preprocessor took 29.49 ms. Allocated memory is still 403.2 MB. Free memory was 349.3 MB in the beginning and 346.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:55:10,689 INFO L168 Benchmark]: RCFGBuilder took 290.20 ms. Allocated memory is still 403.2 MB. Free memory was 346.7 MB in the beginning and 318.8 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 5.3 GB. [2018-02-02 10:55:10,690 INFO L168 Benchmark]: TraceAbstraction took 1770.13 ms. Allocated memory was 403.2 MB in the beginning and 611.8 MB in the end (delta: 208.7 MB). Free memory was 318.8 MB in the beginning and 450.6 MB in the end (delta: -131.7 MB). Peak memory consumption was 76.9 MB. Max. memory is 5.3 GB. [2018-02-02 10:55:10,692 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 403.2 MB. Free memory is still 366.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 169.07 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 349.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.49 ms. Allocated memory is still 403.2 MB. Free memory was 349.3 MB in the beginning and 346.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 290.20 ms. Allocated memory is still 403.2 MB. Free memory was 346.7 MB in the beginning and 318.8 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1770.13 ms. Allocated memory was 403.2 MB in the beginning and 611.8 MB in the end (delta: 208.7 MB). Free memory was 318.8 MB in the beginning and 450.6 MB in the end (delta: -131.7 MB). Peak memory consumption was 76.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 210 column 352: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 210 column 352: theory not supported by interpolation or bad proof: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-55-10-708.csv Received shutdown request...