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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 01:18:08,367 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 01:18:08,369 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 01:18:08,384 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 01:18:08,385 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 01:18:08,386 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 01:18:08,387 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 01:18:08,388 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 01:18:08,390 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 01:18:08,391 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 01:18:08,392 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 01:18:08,392 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 01:18:08,393 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 01:18:08,394 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 01:18:08,395 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 01:18:08,398 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 01:18:08,400 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 01:18:08,402 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 01:18:08,403 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 01:18:08,404 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 01:18:08,406 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 01:18:08,407 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 01:18:08,407 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 01:18:08,408 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 01:18:08,409 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 01:18:08,410 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 01:18:08,410 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 01:18:08,411 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 01:18:08,411 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 01:18:08,411 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 01:18:08,412 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 01:18:08,412 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 01:18:08,421 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 01:18:08,421 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 01:18:08,422 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 01:18:08,422 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 01:18:08,422 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 01:18:08,422 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 01:18:08,422 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 01:18:08,423 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 01:18:08,423 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 01:18:08,423 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 01:18:08,423 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 01:18:08,423 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 01:18:08,423 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 01:18:08,423 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 01:18:08,423 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 01:18:08,424 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 01:18:08,424 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 01:18:08,424 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 01:18:08,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 01:18:08,424 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 01:18:08,424 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 01:18:08,424 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 01:18:08,425 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 01:18:08,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:18:08,425 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 01:18:08,425 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 01:18:08,425 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 01:18:08,425 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 01:18:08,426 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 01:18:08,426 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 01:18:08,426 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 01:18:08,426 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 01:18:08,427 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 01:18:08,427 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 01:18:08,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 01:18:08,469 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 01:18:08,472 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 01:18:08,473 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 01:18:08,473 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 01:18:08,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i [2018-01-30 01:18:08,670 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 01:18:08,676 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 01:18:08,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 01:18:08,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 01:18:08,681 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 01:18:08,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:18:08" (1/1) ... [2018-01-30 01:18:08,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51fea89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08, skipping insertion in model container [2018-01-30 01:18:08,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:18:08" (1/1) ... [2018-01-30 01:18:08,700 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:18:08,738 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:18:08,849 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:18:08,868 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:18:08,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08 WrapperNode [2018-01-30 01:18:08,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 01:18:08,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 01:18:08,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 01:18:08,876 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 01:18:08,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08" (1/1) ... [2018-01-30 01:18:08,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08" (1/1) ... [2018-01-30 01:18:08,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08" (1/1) ... [2018-01-30 01:18:08,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08" (1/1) ... [2018-01-30 01:18:08,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08" (1/1) ... [2018-01-30 01:18:08,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08" (1/1) ... [2018-01-30 01:18:08,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08" (1/1) ... [2018-01-30 01:18:08,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 01:18:08,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 01:18:08,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 01:18:08,917 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 01:18:08,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08" (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 [2018-01-30 01:18:08,982 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 01:18:08,982 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 01:18:08,982 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrpbrk [2018-01-30 01:18:08,982 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 01:18:08,982 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 01:18:08,983 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 01:18:08,983 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 01:18:08,983 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 01:18:08,983 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 01:18:08,983 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 01:18:08,983 INFO L128 BoogieDeclarations]: Found specification of procedure cstrpbrk [2018-01-30 01:18:08,984 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 01:18:08,984 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 01:18:08,984 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 01:18:09,220 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 01:18:09,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:18:09 BoogieIcfgContainer [2018-01-30 01:18:09,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 01:18:09,221 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 01:18:09,222 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 01:18:09,222 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 01:18:09,225 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:18:09" (1/1) ... [2018-01-30 01:18:09,232 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 01:18:09,232 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-30 01:18:09,232 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 01:18:09,278 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 9 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 01:18:09,309 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 01:18:09,371 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 01:18:45,536 INFO L311 AbstractInterpreter]: Visited 82 different actions 553 times. Merged at 52 different actions 310 times. Never widened. Found 45 fixpoints after 8 different actions. Largest state had 57 variables. [2018-01-30 01:18:45,538 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 01:18:45,549 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 4 [2018-01-30 01:18:45,550 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 01:18:45,550 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-30 01:18:45,550 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select |v_#memory_int_8| v_main_~nondetString2~5.base_2), at (SUMMARY for call write~int(0, ~nondetString2~5.base, ~nondetString2~5.offset + (~length2~5 - 1) * 1, 1); srcloc: L563')) ((select (select |v_#memory_int_2| |v_cstrpbrk_#t~post2.base_3|) |v_cstrpbrk_#t~post2.offset_3|), at (SUMMARY for call #t~mem3 := read~int(#t~post2.base, #t~post2.offset, 1); srcloc: L546''')) ((select |v_#memory_int_6| v_main_~nondetString1~5.base_2), at (SUMMARY for call write~int(0, ~nondetString1~5.base, ~nondetString1~5.offset + (~length1~5 - 1) * 1, 1); srcloc: L563)) ((select (select |v_#memory_int_1| |v_cstrpbrk_#t~post0.base_3|) |v_cstrpbrk_#t~post0.offset_3|), at (SUMMARY for call #t~mem1 := read~int(#t~post0.base, #t~post0.offset, 1); srcloc: L545'')) [2018-01-30 01:18:45,575 INFO L547 PartitionManager]: partitioning result: [2018-01-30 01:18:45,576 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-30 01:18:45,576 INFO L561 PartitionManager]: at dimension 0 [2018-01-30 01:18:45,576 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-01-30 01:18:45,576 INFO L563 PartitionManager]: # location blocks :3 [2018-01-30 01:18:45,576 INFO L561 PartitionManager]: at dimension 1 [2018-01-30 01:18:45,576 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-30 01:18:45,576 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 01:18:45,577 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 01:18:45,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:18:45 BasicIcfg [2018-01-30 01:18:45,595 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 01:18:45,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 01:18:45,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 01:18:45,598 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 01:18:45,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 01:18:08" (1/4) ... [2018-01-30 01:18:45,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613c39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:18:45, skipping insertion in model container [2018-01-30 01:18:45,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:18:08" (2/4) ... [2018-01-30 01:18:45,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613c39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:18:45, skipping insertion in model container [2018-01-30 01:18:45,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:18:09" (3/4) ... [2018-01-30 01:18:45,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613c39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:18:45, skipping insertion in model container [2018-01-30 01:18:45,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:18:45" (4/4) ... [2018-01-30 01:18:45,602 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 01:18:45,657 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 01:18:45,663 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-01-30 01:18:45,692 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 01:18:45,692 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 01:18:45,692 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 01:18:45,692 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 01:18:45,693 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 01:18:45,693 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 01:18:45,693 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 01:18:45,693 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 01:18:45,693 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 01:18:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-01-30 01:18:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-30 01:18:45,708 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:45,709 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:18:45,709 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:45,712 INFO L82 PathProgramCache]: Analyzing trace with hash 528743970, now seen corresponding path program 1 times [2018-01-30 01:18:45,714 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:45,714 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:45,753 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:45,753 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:45,753 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:45,801 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:45,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:45,908 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:18:45,908 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:18:45,909 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:18:45,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:18:45,917 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:18:45,918 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2018-01-30 01:18:46,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:46,032 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2018-01-30 01:18:46,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 01:18:46,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-01-30 01:18:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:46,045 INFO L225 Difference]: With dead ends: 114 [2018-01-30 01:18:46,046 INFO L226 Difference]: Without dead ends: 69 [2018-01-30 01:18:46,049 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:18:46,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-01-30 01:18:46,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-01-30 01:18:46,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-01-30 01:18:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-01-30 01:18:46,081 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 15 [2018-01-30 01:18:46,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:46,082 INFO L432 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-01-30 01:18:46,082 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:18:46,082 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-01-30 01:18:46,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-30 01:18:46,082 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:46,082 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:18:46,082 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:46,083 INFO L82 PathProgramCache]: Analyzing trace with hash 528743972, now seen corresponding path program 1 times [2018-01-30 01:18:46,083 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:46,083 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:46,084 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,084 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:46,084 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:46,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:46,216 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:18:46,216 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 01:18:46,218 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 01:18:46,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 01:18:46,218 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:18:46,218 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 6 states. [2018-01-30 01:18:46,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:46,304 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2018-01-30 01:18:46,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 01:18:46,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-01-30 01:18:46,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:46,306 INFO L225 Difference]: With dead ends: 69 [2018-01-30 01:18:46,306 INFO L226 Difference]: Without dead ends: 68 [2018-01-30 01:18:46,307 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-01-30 01:18:46,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-30 01:18:46,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-01-30 01:18:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-01-30 01:18:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2018-01-30 01:18:46,314 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 15 [2018-01-30 01:18:46,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:46,315 INFO L432 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2018-01-30 01:18:46,315 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 01:18:46,315 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2018-01-30 01:18:46,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-30 01:18:46,316 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:46,316 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:18:46,316 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:46,316 INFO L82 PathProgramCache]: Analyzing trace with hash -788805791, now seen corresponding path program 1 times [2018-01-30 01:18:46,316 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:46,317 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:46,318 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,318 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:46,318 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:46,330 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:46,366 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:18:46,366 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:18:46,366 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:18:46,367 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:18:46,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:18:46,367 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 4 states. [2018-01-30 01:18:46,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:46,454 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2018-01-30 01:18:46,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 01:18:46,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-30 01:18:46,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:46,456 INFO L225 Difference]: With dead ends: 68 [2018-01-30 01:18:46,456 INFO L226 Difference]: Without dead ends: 67 [2018-01-30 01:18:46,456 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:18:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-01-30 01:18:46,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-01-30 01:18:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-30 01:18:46,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-01-30 01:18:46,463 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 16 [2018-01-30 01:18:46,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:46,463 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-01-30 01:18:46,463 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:18:46,463 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-01-30 01:18:46,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-30 01:18:46,464 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:46,464 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:18:46,464 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:46,464 INFO L82 PathProgramCache]: Analyzing trace with hash -788805789, now seen corresponding path program 1 times [2018-01-30 01:18:46,464 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:46,465 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:46,465 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,466 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:46,466 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:46,477 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:46,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:46,543 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:18:46,543 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 01:18:46,543 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 01:18:46,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 01:18:46,544 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:18:46,544 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 5 states. [2018-01-30 01:18:46,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:46,616 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-01-30 01:18:46,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 01:18:46,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-01-30 01:18:46,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:46,622 INFO L225 Difference]: With dead ends: 67 [2018-01-30 01:18:46,623 INFO L226 Difference]: Without dead ends: 66 [2018-01-30 01:18:46,623 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:18:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-01-30 01:18:46,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-01-30 01:18:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-01-30 01:18:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2018-01-30 01:18:46,630 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 16 [2018-01-30 01:18:46,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:46,630 INFO L432 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2018-01-30 01:18:46,630 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 01:18:46,631 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2018-01-30 01:18:46,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-30 01:18:46,631 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:46,632 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:18:46,632 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:46,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1467405581, now seen corresponding path program 1 times [2018-01-30 01:18:46,632 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:46,632 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:46,633 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,633 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:46,633 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:46,646 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:46,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:46,757 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:18:46,757 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 01:18:46,757 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 01:18:46,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 01:18:46,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:18:46,758 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 6 states. [2018-01-30 01:18:46,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:46,945 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2018-01-30 01:18:46,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 01:18:46,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-30 01:18:46,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:46,946 INFO L225 Difference]: With dead ends: 66 [2018-01-30 01:18:46,946 INFO L226 Difference]: Without dead ends: 52 [2018-01-30 01:18:46,947 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:18:46,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-01-30 01:18:46,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-01-30 01:18:46,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-01-30 01:18:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-01-30 01:18:46,952 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 24 [2018-01-30 01:18:46,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:46,953 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-01-30 01:18:46,953 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 01:18:46,953 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-01-30 01:18:46,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-30 01:18:46,954 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:46,954 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:18:46,954 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:46,954 INFO L82 PathProgramCache]: Analyzing trace with hash -115617639, now seen corresponding path program 1 times [2018-01-30 01:18:46,954 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:46,954 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:46,955 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,955 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:46,955 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:46,968 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:47,000 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:18:47,000 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 01:18:47,000 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 01:18:47,001 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 01:18:47,001 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:18:47,001 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 6 states. [2018-01-30 01:18:47,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:47,052 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2018-01-30 01:18:47,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 01:18:47,053 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-01-30 01:18:47,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:47,054 INFO L225 Difference]: With dead ends: 52 [2018-01-30 01:18:47,054 INFO L226 Difference]: Without dead ends: 51 [2018-01-30 01:18:47,054 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:18:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-01-30 01:18:47,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-01-30 01:18:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-01-30 01:18:47,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-01-30 01:18:47,058 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 26 [2018-01-30 01:18:47,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:47,058 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-01-30 01:18:47,058 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 01:18:47,059 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-01-30 01:18:47,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-30 01:18:47,059 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:47,059 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:18:47,059 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:47,059 INFO L82 PathProgramCache]: Analyzing trace with hash -115617637, now seen corresponding path program 1 times [2018-01-30 01:18:47,059 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:47,060 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:47,060 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:47,061 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:47,061 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:47,071 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:47,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:47,227 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:18:47,227 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-30 01:18:47,227 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-30 01:18:47,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-30 01:18:47,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-30 01:18:47,228 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 9 states. [2018-01-30 01:18:47,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:47,405 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2018-01-30 01:18:47,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-30 01:18:47,468 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-30 01:18:47,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:47,469 INFO L225 Difference]: With dead ends: 59 [2018-01-30 01:18:47,469 INFO L226 Difference]: Without dead ends: 58 [2018-01-30 01:18:47,470 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-01-30 01:18:47,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-30 01:18:47,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2018-01-30 01:18:47,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-01-30 01:18:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-01-30 01:18:47,474 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 26 [2018-01-30 01:18:47,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:47,474 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-01-30 01:18:47,474 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-30 01:18:47,474 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-01-30 01:18:47,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-30 01:18:47,475 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:47,475 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:18:47,475 INFO L371 AbstractCegarLoop]: === Iteration 8 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:47,475 INFO L82 PathProgramCache]: Analyzing trace with hash -263921074, now seen corresponding path program 1 times [2018-01-30 01:18:47,476 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:47,476 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:47,476 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:47,476 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:47,476 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:47,489 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:47,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:47,613 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:18:47,613 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-30 01:18:47,614 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-30 01:18:47,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-30 01:18:47,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-30 01:18:47,614 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 10 states. [2018-01-30 01:18:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:47,727 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-01-30 01:18:47,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-30 01:18:47,727 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-01-30 01:18:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:47,727 INFO L225 Difference]: With dead ends: 65 [2018-01-30 01:18:47,728 INFO L226 Difference]: Without dead ends: 64 [2018-01-30 01:18:47,728 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-01-30 01:18:47,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-01-30 01:18:47,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 59. [2018-01-30 01:18:47,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-01-30 01:18:47,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2018-01-30 01:18:47,733 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 35 [2018-01-30 01:18:47,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:47,734 INFO L432 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2018-01-30 01:18:47,734 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-30 01:18:47,734 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2018-01-30 01:18:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-30 01:18:47,734 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:47,735 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:18:47,735 INFO L371 AbstractCegarLoop]: === Iteration 9 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:47,735 INFO L82 PathProgramCache]: Analyzing trace with hash -263921076, now seen corresponding path program 1 times [2018-01-30 01:18:47,735 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:47,735 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:47,736 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:47,736 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:47,736 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:47,745 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:47,791 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:18:47,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-30 01:18:47,792 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-30 01:18:47,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-30 01:18:47,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-30 01:18:47,792 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 7 states. [2018-01-30 01:18:47,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:47,859 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2018-01-30 01:18:47,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-30 01:18:47,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-01-30 01:18:47,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:47,860 INFO L225 Difference]: With dead ends: 64 [2018-01-30 01:18:47,860 INFO L226 Difference]: Without dead ends: 63 [2018-01-30 01:18:47,860 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-01-30 01:18:47,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-01-30 01:18:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2018-01-30 01:18:47,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-01-30 01:18:47,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-01-30 01:18:47,865 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 35 [2018-01-30 01:18:47,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:47,865 INFO L432 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-01-30 01:18:47,865 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-30 01:18:47,865 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-01-30 01:18:47,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-01-30 01:18:47,866 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:47,866 INFO L350 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2018-01-30 01:18:47,866 INFO L371 AbstractCegarLoop]: === Iteration 10 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:47,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1573091744, now seen corresponding path program 1 times [2018-01-30 01:18:47,866 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:47,867 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:47,867 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:47,867 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:47,867 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:47,883 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:48,107 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:18:48,107 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:18:48,117 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:48,153 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:18:48,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 14 treesize of output 13 [2018-01-30 01:18:48,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:18:48,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-30 01:18:48,198 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2018-01-30 01:18:48,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-01-30 01:18:48,254 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 11 treesize of output 10 [2018-01-30 01:18:48,254 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:18:48,269 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:18:48,277 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-30 01:18:48,277 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:21 [2018-01-30 01:18:48,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-01-30 01:18:48,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-01-30 01:18:48,539 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-01-30 01:18:48,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-30 01:18:48,553 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-01-30 01:18:48,554 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-01-30 01:18:48,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:48,664 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:18:48,664 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 21 [2018-01-30 01:18:48,665 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-01-30 01:18:48,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-01-30 01:18:48,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=407, Unknown=3, NotChecked=0, Total=462 [2018-01-30 01:18:48,665 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 22 states. [2018-01-30 01:18:49,259 WARN L146 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 65 DAG size of output 49 [2018-01-30 01:18:49,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:18:49,512 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2018-01-30 01:18:49,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-30 01:18:49,513 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 43 [2018-01-30 01:18:49,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:18:49,513 INFO L225 Difference]: With dead ends: 87 [2018-01-30 01:18:49,513 INFO L226 Difference]: Without dead ends: 86 [2018-01-30 01:18:49,514 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=170, Invalid=949, Unknown=3, NotChecked=0, Total=1122 [2018-01-30 01:18:49,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-01-30 01:18:49,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2018-01-30 01:18:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-01-30 01:18:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-01-30 01:18:49,523 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 43 [2018-01-30 01:18:49,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:18:49,524 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-01-30 01:18:49,524 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-01-30 01:18:49,524 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-01-30 01:18:49,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-01-30 01:18:49,525 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:18:49,525 INFO L350 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2018-01-30 01:18:49,525 INFO L371 AbstractCegarLoop]: === Iteration 11 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 01:18:49,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1687121253, now seen corresponding path program 1 times [2018-01-30 01:18:49,526 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:18:49,526 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:18:49,527 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:49,527 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:49,527 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:18:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:49,542 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:18:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:18:49,833 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:18:49,833 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP 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 [2018-01-30 01:18:49,843 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:18:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:18:49,870 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:18:49,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-01-30 01:18:49,892 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-01-30 01:18:49,895 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_1 term size 6 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) 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.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:283) 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.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:218) 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:396) 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) [2018-01-30 01:18:49,897 INFO L168 Benchmark]: Toolchain (without parser) took 41226.11 ms. Allocated memory was 302.0 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 262.0 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 754.6 MB. Max. memory is 5.3 GB. [2018-01-30 01:18:49,898 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 302.0 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:18:49,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.20 ms. Allocated memory is still 302.0 MB. Free memory was 261.0 MB in the beginning and 251.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:18:49,898 INFO L168 Benchmark]: Boogie Preprocessor took 40.63 ms. Allocated memory is still 302.0 MB. Free memory was 251.0 MB in the beginning and 248.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:18:49,898 INFO L168 Benchmark]: RCFGBuilder took 304.40 ms. Allocated memory is still 302.0 MB. Free memory was 248.9 MB in the beginning and 229.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 5.3 GB. [2018-01-30 01:18:49,899 INFO L168 Benchmark]: IcfgTransformer took 36373.96 ms. Allocated memory was 302.0 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 229.2 MB in the beginning and 1.1 GB in the end (delta: -876.1 MB). Peak memory consumption was 720.3 MB. Max. memory is 5.3 GB. [2018-01-30 01:18:49,899 INFO L168 Benchmark]: TraceAbstraction took 4300.47 ms. Allocated memory was 1.9 GB in the beginning and 2.1 GB in the end (delta: 178.3 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -176.8 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. [2018-01-30 01:18:49,901 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 302.0 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 199.20 ms. Allocated memory is still 302.0 MB. Free memory was 261.0 MB in the beginning and 251.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.63 ms. Allocated memory is still 302.0 MB. Free memory was 251.0 MB in the beginning and 248.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 304.40 ms. Allocated memory is still 302.0 MB. Free memory was 248.9 MB in the beginning and 229.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 5.3 GB. * IcfgTransformer took 36373.96 ms. Allocated memory was 302.0 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 229.2 MB in the beginning and 1.1 GB in the end (delta: -876.1 MB). Peak memory consumption was 720.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 4300.47 ms. Allocated memory was 1.9 GB in the beginning and 2.1 GB in the end (delta: 178.3 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -176.8 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 68 LocStat_MAX_WEQGRAPH_SIZE : 5 LocStat_MAX_SIZEOF_WEQEDGELABEL : 3 LocStat_NO_SUPPORTING_EQUALITIES : 1737 LocStat_NO_SUPPORTING_DISEQUALITIES : 1078 LocStat_NO_DISJUNCTIONS : -136 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 91 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 151 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 93 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.444362 RENAME_VARIABLES(MILLISECONDS) : 0.195293 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.428064 PROJECTAWAY(MILLISECONDS) : 0.032231 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.059031 DISJOIN(MILLISECONDS) : 0.219589 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.214735 ADD_EQUALITY(MILLISECONDS) : 0.006839 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.004660 #CONJOIN_DISJUNCTIVE : 881 #RENAME_VARIABLES : 1852 #UNFREEZE : 0 #CONJOIN : 1159 #PROJECTAWAY : 1063 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 173 #RENAME_VARIABLES_DISJUNCTIVE : 1846 #ADD_EQUALITY : 153 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 10 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 3 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 3 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 3 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 4 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_1 term size 6 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_1 term size 6: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) 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/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_01-18-49-913.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_01-18-49-913.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_01-18-49-913.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_01-18-49-913.csv Received shutdown request...