java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/array-examples/standard_strcpy_false-valid-deref_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 11:30:19,745 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 11:30:19,747 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 11:30:19,764 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 11:30:19,764 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 11:30:19,766 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 11:30:19,767 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 11:30:19,771 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 11:30:19,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 11:30:19,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 11:30:19,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 11:30:19,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 11:30:19,776 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 11:30:19,777 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 11:30:19,779 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 11:30:19,779 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 11:30:19,780 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 11:30:19,782 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 11:30:19,784 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 11:30:19,786 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 11:30:19,788 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 11:30:19,789 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 11:30:19,792 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 11:30:19,792 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 11:30:19,792 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 11:30:19,795 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 11:30:19,796 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 11:30:19,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 11:30:19,801 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 11:30:19,805 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 11:30:19,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 11:30:19,806 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 11:30:19,812 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-10-10 11:30:19,844 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 11:30:19,845 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 11:30:19,846 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 11:30:19,846 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 11:30:19,846 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 11:30:19,847 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 11:30:19,847 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 11:30:19,847 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 11:30:19,847 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 11:30:19,847 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 11:30:19,847 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 11:30:19,848 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 11:30:19,848 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 11:30:19,848 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 11:30:19,848 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 11:30:19,848 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-10 11:30:19,849 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-10 11:30:19,849 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 11:30:19,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 11:30:19,849 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 11:30:19,849 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 11:30:19,850 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 11:30:19,850 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 11:30:19,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 11:30:19,850 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 11:30:19,850 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-10 11:30:19,851 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 11:30:19,851 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-10 11:30:19,851 INFO L133 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump [2018-10-10 11:30:19,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 11:30:19,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 11:30:19,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 11:30:19,915 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 11:30:19,915 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 11:30:19,916 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_strcpy_false-valid-deref_ground.i [2018-10-10 11:30:20,251 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75fae7f0/a49673afce5a42b88aa3d999c78fca9f/FLAG0219efa5a [2018-10-10 11:30:20,421 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 11:30:20,421 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_strcpy_false-valid-deref_ground.i [2018-10-10 11:30:20,427 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75fae7f0/a49673afce5a42b88aa3d999c78fca9f/FLAG0219efa5a [2018-10-10 11:30:20,442 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75fae7f0/a49673afce5a42b88aa3d999c78fca9f [2018-10-10 11:30:20,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 11:30:20,454 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 11:30:20,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 11:30:20,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 11:30:20,460 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 11:30:20,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2852a2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20, skipping insertion in model container [2018-10-10 11:30:20,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 11:30:20,494 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 11:30:20,687 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:30:20,693 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 11:30:20,725 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:30:20,754 INFO L193 MainTranslator]: Completed translation [2018-10-10 11:30:20,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20 WrapperNode [2018-10-10 11:30:20,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 11:30:20,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 11:30:20,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 11:30:20,757 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 11:30:20,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 11:30:20,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 11:30:20,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 11:30:20,812 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 11:30:20,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... [2018-10-10 11:30:20,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 11:30:20,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 11:30:20,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 11:30:20,844 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 11:30:20,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 11:30:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 11:30:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 11:30:21,529 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 11:30:21,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:30:21 BoogieIcfgContainer [2018-10-10 11:30:21,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 11:30:21,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 11:30:21,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 11:30:21,535 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 11:30:21,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:30:20" (1/3) ... [2018-10-10 11:30:21,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260cc63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:30:21, skipping insertion in model container [2018-10-10 11:30:21,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:20" (2/3) ... [2018-10-10 11:30:21,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260cc63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:30:21, skipping insertion in model container [2018-10-10 11:30:21,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:30:21" (3/3) ... [2018-10-10 11:30:21,538 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_strcpy_false-valid-deref_ground.i [2018-10-10 11:30:21,548 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 11:30:21,557 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-10-10 11:30:21,575 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-10-10 11:30:21,599 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 11:30:21,599 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 11:30:21,600 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 11:30:21,600 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 11:30:21,600 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 11:30:21,600 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 11:30:21,600 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 11:30:21,600 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 11:30:21,600 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 11:30:21,616 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-10-10 11:30:21,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-10 11:30:21,625 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:21,626 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-10-10 11:30:21,628 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:21,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:21,635 INFO L82 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2018-10-10 11:30:21,640 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:21,641 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:21,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:21,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:21,779 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 9 treesize of output 12 [2018-10-10 11:30:21,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 11 [2018-10-10 11:30:21,792 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:21,820 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:21,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-10 11:30:21,831 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2018-10-10 11:30:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:21,910 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:21,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:21,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:30:21,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:30:21,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:30:21,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:30:21,933 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 4 states. [2018-10-10 11:30:22,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:22,400 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-10-10 11:30:22,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:30:22,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-10-10 11:30:22,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:22,413 INFO L225 Difference]: With dead ends: 36 [2018-10-10 11:30:22,413 INFO L226 Difference]: Without dead ends: 33 [2018-10-10 11:30:22,415 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:30:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-10 11:30:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2018-10-10 11:30:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-10 11:30:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-10-10 11:30:22,454 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 5 [2018-10-10 11:30:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:22,454 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-10-10 11:30:22,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:30:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-10-10 11:30:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-10 11:30:22,455 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:22,455 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-10 11:30:22,456 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:22,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:22,457 INFO L82 PathProgramCache]: Analyzing trace with hash 889537478, now seen corresponding path program 1 times [2018-10-10 11:30:22,457 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:22,458 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:22,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:22,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:22,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-10-10 11:30:22,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-10-10 11:30:22,617 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:22,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:22,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-10-10 11:30:22,712 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:22,738 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:22,739 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:24, output treesize:12 [2018-10-10 11:30:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:22,787 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:22,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:22,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:30:22,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:30:22,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:30:22,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:30:22,793 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 4 states. [2018-10-10 11:30:22,957 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-10 11:30:23,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:23,299 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2018-10-10 11:30:23,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 11:30:23,300 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-10-10 11:30:23,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:23,302 INFO L225 Difference]: With dead ends: 63 [2018-10-10 11:30:23,302 INFO L226 Difference]: Without dead ends: 63 [2018-10-10 11:30:23,303 INFO L605 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 [2018-10-10 11:30:23,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-10 11:30:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 38. [2018-10-10 11:30:23,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-10 11:30:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2018-10-10 11:30:23,309 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 6 [2018-10-10 11:30:23,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:23,310 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2018-10-10 11:30:23,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:30:23,310 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-10-10 11:30:23,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-10 11:30:23,311 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:23,311 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:23,311 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:23,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:23,312 INFO L82 PathProgramCache]: Analyzing trace with hash -441971574, now seen corresponding path program 1 times [2018-10-10 11:30:23,313 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:23,313 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:23,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:23,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:23,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 11:30:23,371 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:23,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:23,374 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-10 11:30:23,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:23,405 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:23,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:23,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:30:23,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:30:23,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:30:23,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:30:23,408 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 4 states. [2018-10-10 11:30:23,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:23,856 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-10-10 11:30:23,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:30:23,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-10 11:30:23,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:23,859 INFO L225 Difference]: With dead ends: 51 [2018-10-10 11:30:23,859 INFO L226 Difference]: Without dead ends: 51 [2018-10-10 11:30:23,859 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:30:23,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-10 11:30:23,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 37. [2018-10-10 11:30:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-10 11:30:23,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-10-10 11:30:23,865 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 10 [2018-10-10 11:30:23,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:23,865 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-10-10 11:30:23,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:30:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-10-10 11:30:23,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-10 11:30:23,866 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:23,866 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:23,867 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:23,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:23,868 INFO L82 PathProgramCache]: Analyzing trace with hash -816216851, now seen corresponding path program 1 times [2018-10-10 11:30:23,868 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:23,868 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:23,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:23,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:23,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 11:30:23,952 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:24,012 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:24,013 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-10-10 11:30:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:24,048 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:24,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:24,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:30:24,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:30:24,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:30:24,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:30:24,052 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 4 states. [2018-10-10 11:30:24,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:24,301 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2018-10-10 11:30:24,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 11:30:24,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-10-10 11:30:24,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:24,304 INFO L225 Difference]: With dead ends: 78 [2018-10-10 11:30:24,304 INFO L226 Difference]: Without dead ends: 78 [2018-10-10 11:30:24,304 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:30:24,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-10-10 11:30:24,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 39. [2018-10-10 11:30:24,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-10 11:30:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2018-10-10 11:30:24,310 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2018-10-10 11:30:24,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:24,311 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2018-10-10 11:30:24,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:30:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-10-10 11:30:24,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-10 11:30:24,312 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:24,312 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:24,313 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:24,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:24,313 INFO L82 PathProgramCache]: Analyzing trace with hash -817753971, now seen corresponding path program 1 times [2018-10-10 11:30:24,313 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:24,314 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:24,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:24,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:24,397 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:24,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:24,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 11:30:24,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:30:24,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:30:24,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:30:24,402 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 4 states. [2018-10-10 11:30:24,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:24,472 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2018-10-10 11:30:24,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:30:24,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-10-10 11:30:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:24,473 INFO L225 Difference]: With dead ends: 45 [2018-10-10 11:30:24,474 INFO L226 Difference]: Without dead ends: 45 [2018-10-10 11:30:24,474 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:30:24,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-10 11:30:24,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2018-10-10 11:30:24,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-10 11:30:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2018-10-10 11:30:24,479 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 11 [2018-10-10 11:30:24,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:24,480 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2018-10-10 11:30:24,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:30:24,480 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-10-10 11:30:24,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-10 11:30:24,481 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:24,481 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:24,481 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:24,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:24,482 INFO L82 PathProgramCache]: Analyzing trace with hash 419429498, now seen corresponding path program 1 times [2018-10-10 11:30:24,482 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:24,483 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:24,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:24,548 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:24,607 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#src~0.base_8| (_ BitVec 32)) (ULTIMATE.start_ULTIMATE.dealloc_~addr.base (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid| |v_ULTIMATE.start_main_~#src~0.base_8| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid| |v_ULTIMATE.start_main_~#src~0.base_8|)) (= |c_#valid| (store (store (store .cse0 ULTIMATE.start_ULTIMATE.dealloc_~addr.base (_ bv1 1)) |v_ULTIMATE.start_main_~#src~0.base_8| (_ bv0 1)) ULTIMATE.start_ULTIMATE.dealloc_~addr.base (_ bv0 1))) (= (select .cse0 ULTIMATE.start_ULTIMATE.dealloc_~addr.base) (_ bv0 1))))) is different from true [2018-10-10 11:30:24,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:24,609 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:24,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:24,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:30:24,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:30:24,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:30:24,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2018-10-10 11:30:24,613 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 4 states. [2018-10-10 11:30:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:24,695 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-10-10 11:30:24,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:30:24,696 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-10 11:30:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:24,697 INFO L225 Difference]: With dead ends: 41 [2018-10-10 11:30:24,697 INFO L226 Difference]: Without dead ends: 36 [2018-10-10 11:30:24,698 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2018-10-10 11:30:24,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-10 11:30:24,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-10-10 11:30:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-10 11:30:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-10-10 11:30:24,703 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 12 [2018-10-10 11:30:24,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:24,703 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-10-10 11:30:24,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:30:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-10-10 11:30:24,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-10 11:30:24,704 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:24,704 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:24,705 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:24,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:24,705 INFO L82 PathProgramCache]: Analyzing trace with hash -871090319, now seen corresponding path program 1 times [2018-10-10 11:30:24,705 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:24,706 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:24,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:24,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:24,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-10-10 11:30:24,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-10-10 11:30:24,876 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:24,886 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:24,913 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-10-10 11:30:24,914 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:24,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:24,935 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:24, output treesize:12 [2018-10-10 11:30:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:25,069 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-10 11:30:25,235 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 11:30:25,759 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-10 11:30:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:25,978 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 11:30:25,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2018-10-10 11:30:26,006 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_~#src~0.base's outvar occurs in several conjuncts [(= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|) |v_#length_1|), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| (_ bv0 32)), (= |v_ULTIMATE.start_main_~#dst~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|), (not (= (_ bv0 32) |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_ULTIMATE.start_main_~#src~0.offset_1| (_ bv0 32)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1| (_ bv1 1))), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| (_ bv400000 32)), (= |v_ULTIMATE.start_main_old_#valid_2| |v_#valid_6|), (not (= |v_ULTIMATE.start_main_~#src~0.base_1| (_ bv0 32))), (= (select |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1|) (_ bv0 1)), (= |v_ULTIMATE.start_main_~#dst~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (= v_ULTIMATE.start_main_~i~0_1 (_ bv0 32)), (= (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|) (_ bv0 1)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| (_ bv1 1)) |v_#valid_4|), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#src~0.base_1| (_ bv400000 32)) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|)] at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.addStatementsAndVariables(PathProgramDumper.java:634) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructTransitionStatements(PathProgramDumper.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.processTransition(PathProgramDumper.java:521) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructProcedureStatements(PathProgramDumper.java:489) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructNewImplementation(PathProgramDumper.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.(PathProgramDumper.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.doDump(PathProgramDumpController.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.reportPathProgram(PathProgramDumpController.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-10 11:30:26,012 INFO L168 Benchmark]: Toolchain (without parser) took 5559.01 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.2 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -529.2 MB). Peak memory consumption was 197.9 MB. Max. memory is 7.1 GB. [2018-10-10 11:30:26,014 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:30:26,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 11:30:26,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.05 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:30:26,021 INFO L168 Benchmark]: Boogie Preprocessor took 31.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:30:26,022 INFO L168 Benchmark]: RCFGBuilder took 686.31 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -747.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-10-10 11:30:26,023 INFO L168 Benchmark]: TraceAbstraction took 4478.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 207.9 MB). Peak memory consumption was 207.9 MB. Max. memory is 7.1 GB. [2018-10-10 11:30:26,031 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.05 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 686.31 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -747.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4478.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 207.9 MB). Peak memory consumption was 207.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_~#src~0.base's outvar occurs in several conjuncts [(= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|) |v_#length_1|), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| (_ bv0 32)), (= |v_ULTIMATE.start_main_~#dst~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|), (not (= (_ bv0 32) |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_ULTIMATE.start_main_~#src~0.offset_1| (_ bv0 32)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1| (_ bv1 1))), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| (_ bv400000 32)), (= |v_ULTIMATE.start_main_old_#valid_2| |v_#valid_6|), (not (= |v_ULTIMATE.start_main_~#src~0.base_1| (_ bv0 32))), (= (select |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1|) (_ bv0 1)), (= |v_ULTIMATE.start_main_~#dst~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (= v_ULTIMATE.start_main_~i~0_1 (_ bv0 32)), (= (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|) (_ bv0 1)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| (_ bv1 1)) |v_#valid_4|), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#src~0.base_1| (_ bv400000 32)) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|)] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_~#src~0.base's outvar occurs in several conjuncts [(= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|) |v_#length_1|), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| (_ bv0 32)), (= |v_ULTIMATE.start_main_~#dst~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|), (not (= (_ bv0 32) |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_ULTIMATE.start_main_~#src~0.offset_1| (_ bv0 32)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1| (_ bv1 1))), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| (_ bv400000 32)), (= |v_ULTIMATE.start_main_old_#valid_2| |v_#valid_6|), (not (= |v_ULTIMATE.start_main_~#src~0.base_1| (_ bv0 32))), (= (select |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1|) (_ bv0 1)), (= |v_ULTIMATE.start_main_~#dst~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (= v_ULTIMATE.start_main_~i~0_1 (_ bv0 32)), (= (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|) (_ bv0 1)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| (_ bv1 1)) |v_#valid_4|), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#src~0.base_1| (_ bv400000 32)) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|)]: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...