/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-sets/test_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:02:49,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:02:49,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:02:49,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 04:02:49,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 04:02:49,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 04:02:49,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 04:02:49,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 04:02:49,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 04:02:49,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 04:02:49,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 04:02:49,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 04:02:49,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 04:02:49,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 04:02:49,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 04:02:49,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 04:02:49,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 04:02:49,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 04:02:49,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 04:02:49,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 04:02:49,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 04:02:49,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 04:02:49,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 04:02:49,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 04:02:49,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 04:02:49,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 04:02:49,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 04:02:49,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 04:02:49,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 04:02:49,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 04:02:49,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 04:02:49,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 04:02:49,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 04:02:49,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:02:49,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:02:49,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:02:49,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:02:49,671 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:02:49,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:02:49,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:02:49,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:02:49,676 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:02:49,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:02:49,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:02:49,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:02:49,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:02:49,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:02:49,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:02:49,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:02:49,681 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:02:49,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:02:49,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:02:49,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:02:49,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:02:49,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:02:49,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:02:49,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:02:49,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:02:49,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:02:49,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:02:49,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:02:49,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:02:49,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:02:50,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:02:50,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:02:50,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:02:50,210 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:02:50,211 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:02:50,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_mutex.i [2020-12-22 04:02:50,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d3cab28/f52f6f6822684842b1b534c0f9800808/FLAG9634b5b90 [2020-12-22 04:02:51,081 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:02:51,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i [2020-12-22 04:02:51,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d3cab28/f52f6f6822684842b1b534c0f9800808/FLAG9634b5b90 [2020-12-22 04:02:51,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d3cab28/f52f6f6822684842b1b534c0f9800808 [2020-12-22 04:02:51,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:02:51,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:02:51,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:02:51,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:02:51,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:02:51,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:02:51" (1/1) ... [2020-12-22 04:02:51,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1943f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:51, skipping insertion in model container [2020-12-22 04:02:51,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:02:51" (1/1) ... [2020-12-22 04:02:51,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:02:51,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:02:51,818 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2020-12-22 04:02:51,830 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2020-12-22 04:02:51,836 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2020-12-22 04:02:51,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:02:51,857 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:02:51,947 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2020-12-22 04:02:51,949 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2020-12-22 04:02:51,950 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2020-12-22 04:02:51,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:02:52,044 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:02:52,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52 WrapperNode [2020-12-22 04:02:52,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:02:52,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:02:52,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:02:52,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:02:52,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (1/1) ... [2020-12-22 04:02:52,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (1/1) ... [2020-12-22 04:02:52,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:02:52,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:02:52,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:02:52,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:02:52,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (1/1) ... [2020-12-22 04:02:52,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (1/1) ... [2020-12-22 04:02:52,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (1/1) ... [2020-12-22 04:02:52,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (1/1) ... [2020-12-22 04:02:52,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (1/1) ... [2020-12-22 04:02:52,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (1/1) ... [2020-12-22 04:02:52,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (1/1) ... [2020-12-22 04:02:52,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:02:52,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:02:52,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:02:52,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:02:52,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (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 [2020-12-22 04:02:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 04:02:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 04:02:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:02:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 04:02:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 04:02:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 04:02:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:02:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:02:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:02:53,352 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:02:53,353 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2020-12-22 04:02:53,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:02:53 BoogieIcfgContainer [2020-12-22 04:02:53,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:02:53,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:02:53,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:02:53,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:02:53,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:02:51" (1/3) ... [2020-12-22 04:02:53,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb5cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:02:53, skipping insertion in model container [2020-12-22 04:02:53,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:02:52" (2/3) ... [2020-12-22 04:02:53,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb5cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:02:53, skipping insertion in model container [2020-12-22 04:02:53,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:02:53" (3/3) ... [2020-12-22 04:02:53,366 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2020-12-22 04:02:53,374 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:02:53,380 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-22 04:02:53,404 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 04:02:53,437 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:02:53,437 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:02:53,437 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:02:53,437 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:02:53,438 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:02:53,438 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:02:53,438 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:02:53,438 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:02:53,461 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-12-22 04:02:53,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 04:02:53,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:02:53,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:02:53,476 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:02:53,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:02:53,486 INFO L82 PathProgramCache]: Analyzing trace with hash 912087840, now seen corresponding path program 1 times [2020-12-22 04:02:53,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:02:53,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642398147] [2020-12-22 04:02:53,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:02:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:02:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:02:53,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642398147] [2020-12-22 04:02:53,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:02:53,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 04:02:53,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451637203] [2020-12-22 04:02:53,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 04:02:53,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:02:53,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 04:02:53,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:02:53,720 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 2 states. [2020-12-22 04:02:53,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:02:53,753 INFO L93 Difference]: Finished difference Result 172 states and 239 transitions. [2020-12-22 04:02:53,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 04:02:53,755 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-12-22 04:02:53,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:02:53,769 INFO L225 Difference]: With dead ends: 172 [2020-12-22 04:02:53,770 INFO L226 Difference]: Without dead ends: 84 [2020-12-22 04:02:53,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:02:53,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-22 04:02:53,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-12-22 04:02:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-22 04:02:53,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2020-12-22 04:02:53,833 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 14 [2020-12-22 04:02:53,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:02:53,834 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2020-12-22 04:02:53,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 04:02:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2020-12-22 04:02:53,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 04:02:53,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:02:53,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:02:53,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 04:02:53,837 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:02:53,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:02:53,838 INFO L82 PathProgramCache]: Analyzing trace with hash 793647061, now seen corresponding path program 1 times [2020-12-22 04:02:53,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:02:53,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682227043] [2020-12-22 04:02:53,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:02:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:02:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:02:54,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682227043] [2020-12-22 04:02:54,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:02:54,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:02:54,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138012012] [2020-12-22 04:02:54,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:02:54,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:02:54,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:02:54,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:02:54,011 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand 4 states. [2020-12-22 04:02:54,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:02:54,223 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2020-12-22 04:02:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:02:54,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-22 04:02:54,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:02:54,229 INFO L225 Difference]: With dead ends: 135 [2020-12-22 04:02:54,230 INFO L226 Difference]: Without dead ends: 131 [2020-12-22 04:02:54,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:02:54,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-22 04:02:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 88. [2020-12-22 04:02:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-22 04:02:54,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 105 transitions. [2020-12-22 04:02:54,254 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 105 transitions. Word has length 14 [2020-12-22 04:02:54,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:02:54,254 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 105 transitions. [2020-12-22 04:02:54,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:02:54,255 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2020-12-22 04:02:54,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 04:02:54,256 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:02:54,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:02:54,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 04:02:54,257 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:02:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:02:54,258 INFO L82 PathProgramCache]: Analyzing trace with hash 795255775, now seen corresponding path program 1 times [2020-12-22 04:02:54,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:02:54,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955929241] [2020-12-22 04:02:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:02:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:02:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:02:54,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955929241] [2020-12-22 04:02:54,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:02:54,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:02:54,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936891448] [2020-12-22 04:02:54,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:02:54,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:02:54,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:02:54,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:02:54,474 INFO L87 Difference]: Start difference. First operand 88 states and 105 transitions. Second operand 4 states. [2020-12-22 04:02:54,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:02:54,863 INFO L93 Difference]: Finished difference Result 219 states and 262 transitions. [2020-12-22 04:02:54,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:02:54,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-22 04:02:54,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:02:54,872 INFO L225 Difference]: With dead ends: 219 [2020-12-22 04:02:54,873 INFO L226 Difference]: Without dead ends: 140 [2020-12-22 04:02:54,874 INFO L677 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 [2020-12-22 04:02:54,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-22 04:02:54,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 101. [2020-12-22 04:02:54,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-22 04:02:54,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2020-12-22 04:02:54,889 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 14 [2020-12-22 04:02:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:02:54,889 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2020-12-22 04:02:54,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:02:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2020-12-22 04:02:54,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 04:02:54,891 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:02:54,891 INFO L422 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] [2020-12-22 04:02:54,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 04:02:54,892 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:02:54,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:02:54,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1115638045, now seen corresponding path program 1 times [2020-12-22 04:02:54,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:02:54,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687400182] [2020-12-22 04:02:54,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:02:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:02:55,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:02:55,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687400182] [2020-12-22 04:02:55,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:02:55,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-22 04:02:55,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149045724] [2020-12-22 04:02:55,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 04:02:55,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:02:55,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 04:02:55,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-12-22 04:02:55,609 INFO L87 Difference]: Start difference. First operand 101 states and 118 transitions. Second operand 15 states. [2020-12-22 04:02:56,414 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-12-22 04:02:57,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:02:57,597 INFO L93 Difference]: Finished difference Result 224 states and 264 transitions. [2020-12-22 04:02:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 04:02:57,597 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2020-12-22 04:02:57,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:02:57,604 INFO L225 Difference]: With dead ends: 224 [2020-12-22 04:02:57,604 INFO L226 Difference]: Without dead ends: 173 [2020-12-22 04:02:57,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2020-12-22 04:02:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-12-22 04:02:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 106. [2020-12-22 04:02:57,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-22 04:02:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 125 transitions. [2020-12-22 04:02:57,626 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 125 transitions. Word has length 28 [2020-12-22 04:02:57,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:02:57,626 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 125 transitions. [2020-12-22 04:02:57,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 04:02:57,626 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 125 transitions. [2020-12-22 04:02:57,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 04:02:57,628 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:02:57,628 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 04:02:57,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 04:02:57,629 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:02:57,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:02:57,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1190752804, now seen corresponding path program 1 times [2020-12-22 04:02:57,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:02:57,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090130946] [2020-12-22 04:02:57,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:02:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:02:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:02:58,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090130946] [2020-12-22 04:02:58,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049066922] [2020-12-22 04:02:58,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:02:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:02:58,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 78 conjunts are in the unsatisfiable core [2020-12-22 04:02:58,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:02:58,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:02:58,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:02:58,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:02:59,138 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-12-22 04:02:59,139 INFO L348 Elim1Store]: treesize reduction 188, result has 55.0 percent of original size [2020-12-22 04:02:59,140 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 546 treesize of output 515 [2020-12-22 04:02:59,160 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:02:59,444 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-12-22 04:02:59,445 INFO L625 ElimStorePlain]: treesize reduction 142, result has 72.3 percent of original size [2020-12-22 04:02:59,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:02:59,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:02:59,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:02:59,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:02:59,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:02:59,670 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-22 04:02:59,672 INFO L348 Elim1Store]: treesize reduction 62, result has 73.5 percent of original size [2020-12-22 04:02:59,673 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 214 [2020-12-22 04:02:59,692 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:02:59,919 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2020-12-22 04:02:59,920 INFO L625 ElimStorePlain]: treesize reduction 162, result has 46.9 percent of original size [2020-12-22 04:02:59,966 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:02:59,966 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:647, output treesize:154 [2020-12-22 04:03:00,255 INFO L348 Elim1Store]: treesize reduction 18, result has 81.8 percent of original size [2020-12-22 04:03:00,256 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 180 treesize of output 175 [2020-12-22 04:03:00,265 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:03:00,288 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:03:00,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:03:00,310 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:03:00,311 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 44 [2020-12-22 04:03:00,315 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:03:00,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:03:00,329 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:03:00,330 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:186, output treesize:15 [2020-12-22 04:03:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:03:00,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:03:00,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-12-22 04:03:00,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908375148] [2020-12-22 04:03:00,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-22 04:03:00,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:03:00,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-22 04:03:00,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-12-22 04:03:00,381 INFO L87 Difference]: Start difference. First operand 106 states and 125 transitions. Second operand 14 states. [2020-12-22 04:03:00,858 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-22 04:03:01,121 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-12-22 04:03:01,364 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-12-22 04:03:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:03:02,747 INFO L93 Difference]: Finished difference Result 292 states and 343 transitions. [2020-12-22 04:03:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 04:03:02,748 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 31 [2020-12-22 04:03:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:03:02,750 INFO L225 Difference]: With dead ends: 292 [2020-12-22 04:03:02,751 INFO L226 Difference]: Without dead ends: 232 [2020-12-22 04:03:02,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2020-12-22 04:03:02,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-12-22 04:03:02,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 122. [2020-12-22 04:03:02,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-12-22 04:03:02,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 141 transitions. [2020-12-22 04:03:02,776 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 141 transitions. Word has length 31 [2020-12-22 04:03:02,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:03:02,777 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 141 transitions. [2020-12-22 04:03:02,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-22 04:03:02,779 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 141 transitions. [2020-12-22 04:03:02,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 04:03:02,781 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:03:02,781 INFO L422 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] [2020-12-22 04:03:02,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:03:02,982 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:03:02,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:03:02,983 INFO L82 PathProgramCache]: Analyzing trace with hash 251401029, now seen corresponding path program 1 times [2020-12-22 04:03:02,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:03:02,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125036079] [2020-12-22 04:03:02,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:03:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:03:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:03:03,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125036079] [2020-12-22 04:03:03,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:03:03,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:03:03,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205297303] [2020-12-22 04:03:03,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:03:03,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:03:03,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:03:03,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:03:03,097 INFO L87 Difference]: Start difference. First operand 122 states and 141 transitions. Second operand 4 states. [2020-12-22 04:03:03,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:03:03,183 INFO L93 Difference]: Finished difference Result 201 states and 232 transitions. [2020-12-22 04:03:03,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:03:03,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-22 04:03:03,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:03:03,185 INFO L225 Difference]: With dead ends: 201 [2020-12-22 04:03:03,185 INFO L226 Difference]: Without dead ends: 129 [2020-12-22 04:03:03,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:03:03,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-12-22 04:03:03,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 97. [2020-12-22 04:03:03,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-22 04:03:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2020-12-22 04:03:03,198 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 34 [2020-12-22 04:03:03,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:03:03,199 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2020-12-22 04:03:03,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:03:03,199 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2020-12-22 04:03:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 04:03:03,201 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:03:03,201 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:03:03,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 04:03:03,201 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:03:03,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:03:03,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1130333060, now seen corresponding path program 1 times [2020-12-22 04:03:03,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:03:03,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827339623] [2020-12-22 04:03:03,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:03:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:03:04,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 04:03:04,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827339623] [2020-12-22 04:03:04,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342624471] [2020-12-22 04:03:04,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:03:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:03:04,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 170 conjunts are in the unsatisfiable core [2020-12-22 04:03:04,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:03:04,297 INFO L382 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 [2020-12-22 04:03:04,298 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:03:04,306 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:03:04,307 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:03:04,308 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-12-22 04:03:04,416 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:03:04,417 INFO L382 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 04:03:04,426 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:03:04,434 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:03:04,443 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:03:04,444 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:03:04,444 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2020-12-22 04:03:04,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:03:05,057 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-12-22 04:03:05,058 INFO L348 Elim1Store]: treesize reduction 36, result has 77.5 percent of original size [2020-12-22 04:03:05,059 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 145 [2020-12-22 04:03:05,064 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:03:05,271 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2020-12-22 04:03:05,272 INFO L625 ElimStorePlain]: treesize reduction 74, result has 74.1 percent of original size [2020-12-22 04:03:05,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:03:05,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:03:05,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:03:05,439 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 28 [2020-12-22 04:03:05,440 INFO L348 Elim1Store]: treesize reduction 103, result has 35.6 percent of original size [2020-12-22 04:03:05,440 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 78 [2020-12-22 04:03:05,443 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:03:05,621 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-12-22 04:03:05,624 INFO L625 ElimStorePlain]: treesize reduction 18, result has 87.8 percent of original size [2020-12-22 04:03:05,632 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:03:05,634 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:03:05,635 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:287, output treesize:221 [2020-12-22 04:03:06,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 04:03:06,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:03:06,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2020-12-22 04:03:06,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835895043] [2020-12-22 04:03:06,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-22 04:03:06,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:03:06,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-22 04:03:06,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1039, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 04:03:06,593 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand 34 states. [2020-12-22 04:03:07,714 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-12-22 04:03:08,276 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-12-22 04:03:08,673 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2020-12-22 04:03:09,066 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2020-12-22 04:03:09,475 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-12-22 04:03:09,823 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-12-22 04:03:10,147 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-12-22 04:03:10,437 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 67 [2020-12-22 04:03:10,710 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-12-22 04:03:11,014 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2020-12-22 04:03:11,296 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2020-12-22 04:03:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:03:12,499 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2020-12-22 04:03:12,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-22 04:03:12,502 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 44 [2020-12-22 04:03:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:03:12,506 INFO L225 Difference]: With dead ends: 163 [2020-12-22 04:03:12,506 INFO L226 Difference]: Without dead ends: 104 [2020-12-22 04:03:12,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=364, Invalid=2498, Unknown=0, NotChecked=0, Total=2862 [2020-12-22 04:03:12,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-22 04:03:12,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 78. [2020-12-22 04:03:12,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-22 04:03:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2020-12-22 04:03:12,533 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 44 [2020-12-22 04:03:12,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:03:12,533 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2020-12-22 04:03:12,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-22 04:03:12,534 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2020-12-22 04:03:12,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 04:03:12,535 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:03:12,535 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:03:12,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:03:12,751 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:03:12,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:03:12,752 INFO L82 PathProgramCache]: Analyzing trace with hash 786851695, now seen corresponding path program 1 times [2020-12-22 04:03:12,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:03:12,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167514158] [2020-12-22 04:03:12,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:03:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:03:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 04:03:12,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167514158] [2020-12-22 04:03:12,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:03:12,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 04:03:12,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260253171] [2020-12-22 04:03:12,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 04:03:12,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:03:12,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 04:03:12,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 04:03:12,917 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 8 states. [2020-12-22 04:03:13,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:03:13,369 INFO L93 Difference]: Finished difference Result 178 states and 205 transitions. [2020-12-22 04:03:13,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 04:03:13,370 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-12-22 04:03:13,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:03:13,371 INFO L225 Difference]: With dead ends: 178 [2020-12-22 04:03:13,371 INFO L226 Difference]: Without dead ends: 146 [2020-12-22 04:03:13,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-12-22 04:03:13,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-12-22 04:03:13,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 84. [2020-12-22 04:03:13,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-22 04:03:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2020-12-22 04:03:13,389 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 48 [2020-12-22 04:03:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:03:13,390 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2020-12-22 04:03:13,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 04:03:13,390 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2020-12-22 04:03:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 04:03:13,392 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:03:13,392 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:03:13,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 04:03:13,392 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:03:13,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:03:13,393 INFO L82 PathProgramCache]: Analyzing trace with hash 788460409, now seen corresponding path program 1 times [2020-12-22 04:03:13,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:03:13,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922681979] [2020-12-22 04:03:13,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:03:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:03:13,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 04:03:13,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922681979] [2020-12-22 04:03:13,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:03:13,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:03:13,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830916400] [2020-12-22 04:03:13,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:03:13,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:03:13,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:03:13,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:03:13,531 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand 4 states. [2020-12-22 04:03:13,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:03:13,595 INFO L93 Difference]: Finished difference Result 115 states and 129 transitions. [2020-12-22 04:03:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:03:13,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-12-22 04:03:13,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:03:13,597 INFO L225 Difference]: With dead ends: 115 [2020-12-22 04:03:13,597 INFO L226 Difference]: Without dead ends: 111 [2020-12-22 04:03:13,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:03:13,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-12-22 04:03:13,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 88. [2020-12-22 04:03:13,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-22 04:03:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2020-12-22 04:03:13,611 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 48 [2020-12-22 04:03:13,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:03:13,611 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2020-12-22 04:03:13,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:03:13,611 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2020-12-22 04:03:13,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 04:03:13,612 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:03:13,613 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:03:13,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 04:03:13,613 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:03:13,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:03:13,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1434516829, now seen corresponding path program 1 times [2020-12-22 04:03:13,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:03:13,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832616193] [2020-12-22 04:03:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:03:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:03:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 04:03:13,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832616193] [2020-12-22 04:03:13,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048733862] [2020-12-22 04:03:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:03:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:03:14,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 126 conjunts are in the unsatisfiable core [2020-12-22 04:03:14,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:03:14,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:03:14,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:03:14,336 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 04:03:14,534 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-12-22 04:03:14,534 INFO L348 Elim1Store]: treesize reduction 39, result has 78.1 percent of original size [2020-12-22 04:03:14,535 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 160 [2020-12-22 04:03:14,538 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:03:14,660 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2020-12-22 04:03:14,661 INFO L625 ElimStorePlain]: treesize reduction 86, result has 47.2 percent of original size [2020-12-22 04:03:14,667 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:14,670 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:14,673 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 04:03:14,674 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:149, output treesize:54 [2020-12-22 04:03:14,676 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:14,741 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:14,802 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:27,058 WARN L197 SmtUtils]: Spent 12.20 s on a formula simplification that was a NOOP. DAG size: 39 [2020-12-22 04:03:27,316 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:27,379 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:27,445 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:27,513 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:42,407 WARN L197 SmtUtils]: Spent 14.82 s on a formula simplification that was a NOOP. DAG size: 41 [2020-12-22 04:03:42,924 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:03:59,213 WARN L197 SmtUtils]: Spent 16.23 s on a formula simplification that was a NOOP. DAG size: 51 [2020-12-22 04:03:59,254 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:04:15,798 WARN L197 SmtUtils]: Spent 16.47 s on a formula simplification that was a NOOP. DAG size: 51 [2020-12-22 04:04:15,886 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 7, 1] term [2020-12-22 04:04:15,886 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 04:04:15,909 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:04:15,939 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:04:16,023 INFO L443 ElimStorePlain]: Different costs {0=[v_prenex_25, v_prenex_32, |v_#memory_$Pointer$.base_47|], 51=[v_prenex_33, |v_#memory_$Pointer$.offset_48|], 69=[v_prenex_26]} [2020-12-22 04:04:19,379 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= ULTIMATE.start_ldv_set_add_~le~0.base ULTIMATE.start___ldv_list_add_~new.base) [2020-12-22 04:04:19,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:04:20,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:04:21,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:04:21,111 INFO L244 Elim1Store]: Index analysis took 4593 ms [2020-12-22 04:04:32,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:04:40,673 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_$Pointer$.base| ULTIMATE.start___ldv_list_add_~new.base) v_prenex_28) |~#mutexes~0.base|) [2020-12-22 04:04:43,255 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-12-22 04:04:43,257 INFO L348 Elim1Store]: treesize reduction 143, result has 54.5 percent of original size [2020-12-22 04:04:43,258 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 194 [2020-12-22 04:04:43,263 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:07:02,087 WARN L197 SmtUtils]: Spent 2.31 m on a formula simplification. DAG size of input: 190 DAG size of output: 179 [2020-12-22 04:07:02,088 INFO L625 ElimStorePlain]: treesize reduction 76, result has 94.2 percent of original size [2020-12-22 04:07:04,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:07:05,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:07:05,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:07:05,530 INFO L244 Elim1Store]: Index analysis took 3131 ms [2020-12-22 04:07:12,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:07:15,201 WARN L197 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-12-22 04:07:15,202 INFO L348 Elim1Store]: treesize reduction 143, result has 54.5 percent of original size [2020-12-22 04:07:15,203 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 194 [2020-12-22 04:07:15,209 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.