/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/stateful_check.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:04:12,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:04:12,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:04:12,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 01:04:12,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 01:04:12,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 01:04:12,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 01:04:12,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 01:04:12,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 01:04:12,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 01:04:12,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 01:04:12,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 01:04:12,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:04:12,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:04:12,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:04:12,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:04:12,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:04:12,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:04:12,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:04:12,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:04:12,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:04:12,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:04:12,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:04:12,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:04:12,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:04:12,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 01:04:12,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 01:04:12,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 01:04:12,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 01:04:12,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 01:04:12,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 01:04:12,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 01:04:12,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 01:04:12,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:04:12,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:04:12,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:04:12,663 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:04:12,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:04:12,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:04:12,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:04:12,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:04:12,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:04:12,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:04:12,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:04:12,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:04:12,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:04:12,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:04:12,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:04:12,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:04:12,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:04:12,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:04:12,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:04:12,694 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:04:12,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:04:12,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:04:12,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:04:12,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:04:12,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:04:12,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:04:12,696 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:04:13,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:04:13,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:04:13,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:04:13,124 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:04:13,125 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:04:13,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-10-24 01:04:13,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b558f53/3178e38afff34b1eaf15861e6cea6db8/FLAG54b3a9d89 [2020-10-24 01:04:13,883 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:04:13,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-10-24 01:04:13,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b558f53/3178e38afff34b1eaf15861e6cea6db8/FLAG54b3a9d89 [2020-10-24 01:04:14,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b558f53/3178e38afff34b1eaf15861e6cea6db8 [2020-10-24 01:04:14,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:04:14,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:04:14,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:04:14,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:04:14,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:04:14,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:04:14" (1/1) ... [2020-10-24 01:04:14,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f6629ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14, skipping insertion in model container [2020-10-24 01:04:14,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:04:14" (1/1) ... [2020-10-24 01:04:14,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:04:14,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:04:14,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:04:14,490 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:04:14,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:04:14,532 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:04:14,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14 WrapperNode [2020-10-24 01:04:14,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:04:14,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:04:14,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:04:14,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:04:14,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14" (1/1) ... [2020-10-24 01:04:14,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14" (1/1) ... [2020-10-24 01:04:14,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14" (1/1) ... [2020-10-24 01:04:14,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14" (1/1) ... [2020-10-24 01:04:14,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14" (1/1) ... [2020-10-24 01:04:14,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14" (1/1) ... [2020-10-24 01:04:14,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14" (1/1) ... [2020-10-24 01:04:14,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:04:14,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:04:14,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:04:14,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:04:14,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14" (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 [2020-10-24 01:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-24 01:04:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-24 01:04:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-24 01:04:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2020-10-24 01:04:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2020-10-24 01:04:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2020-10-24 01:04:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2020-10-24 01:04:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2020-10-24 01:04:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2020-10-24 01:04:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:04:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:04:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:04:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:04:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:04:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-24 01:04:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:04:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-24 01:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-24 01:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2020-10-24 01:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2020-10-24 01:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2020-10-24 01:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2020-10-24 01:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2020-10-24 01:04:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2020-10-24 01:04:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:04:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:04:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:04:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:04:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:04:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:04:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:04:15,160 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:04:15,161 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 01:04:15,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:04:15 BoogieIcfgContainer [2020-10-24 01:04:15,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:04:15,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:04:15,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:04:15,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:04:15,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:04:14" (1/3) ... [2020-10-24 01:04:15,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659507b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:04:15, skipping insertion in model container [2020-10-24 01:04:15,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:14" (2/3) ... [2020-10-24 01:04:15,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659507b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:04:15, skipping insertion in model container [2020-10-24 01:04:15,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:04:15" (3/3) ... [2020-10-24 01:04:15,172 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2020-10-24 01:04:15,185 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:04:15,190 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:04:15,205 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:04:15,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:04:15,231 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:04:15,231 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:04:15,231 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:04:15,232 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:04:15,232 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:04:15,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:04:15,232 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:04:15,254 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2020-10-24 01:04:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-24 01:04:15,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:15,266 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] [2020-10-24 01:04:15,266 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:15,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:15,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1164333913, now seen corresponding path program 1 times [2020-10-24 01:04:15,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:15,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532593711] [2020-10-24 01:04:15,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:15,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:15,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 01:04:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:15,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:04:15,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532593711] [2020-10-24 01:04:15,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:15,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 01:04:15,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888939135] [2020-10-24 01:04:15,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 01:04:15,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:15,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 01:04:15,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 01:04:15,721 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 4 states. [2020-10-24 01:04:16,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:16,236 INFO L93 Difference]: Finished difference Result 212 states and 258 transitions. [2020-10-24 01:04:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 01:04:16,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-24 01:04:16,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:16,251 INFO L225 Difference]: With dead ends: 212 [2020-10-24 01:04:16,251 INFO L226 Difference]: Without dead ends: 110 [2020-10-24 01:04:16,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 01:04:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-24 01:04:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2020-10-24 01:04:16,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-24 01:04:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-10-24 01:04:16,324 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 28 [2020-10-24 01:04:16,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:16,325 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-10-24 01:04:16,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 01:04:16,325 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-10-24 01:04:16,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-24 01:04:16,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:16,327 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] [2020-10-24 01:04:16,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:04:16,328 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:16,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:16,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1140018033, now seen corresponding path program 1 times [2020-10-24 01:04:16,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:16,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600545675] [2020-10-24 01:04:16,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:16,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:16,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 01:04:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:04:16,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600545675] [2020-10-24 01:04:16,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:16,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 01:04:16,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192574965] [2020-10-24 01:04:16,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:04:16,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:16,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:04:16,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:04:16,490 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 5 states. [2020-10-24 01:04:16,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:16,976 INFO L93 Difference]: Finished difference Result 181 states and 212 transitions. [2020-10-24 01:04:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 01:04:16,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-24 01:04:16,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:16,980 INFO L225 Difference]: With dead ends: 181 [2020-10-24 01:04:16,980 INFO L226 Difference]: Without dead ends: 173 [2020-10-24 01:04:16,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:04:16,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-24 01:04:17,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 169. [2020-10-24 01:04:17,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-24 01:04:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 199 transitions. [2020-10-24 01:04:17,018 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 199 transitions. Word has length 30 [2020-10-24 01:04:17,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:17,019 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 199 transitions. [2020-10-24 01:04:17,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:04:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 199 transitions. [2020-10-24 01:04:17,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-24 01:04:17,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:17,021 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] [2020-10-24 01:04:17,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:04:17,022 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:17,023 INFO L82 PathProgramCache]: Analyzing trace with hash -555133441, now seen corresponding path program 1 times [2020-10-24 01:04:17,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:17,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380496944] [2020-10-24 01:04:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:17,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 01:04:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:17,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-24 01:04:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:04:17,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380496944] [2020-10-24 01:04:17,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:17,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 01:04:17,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302976799] [2020-10-24 01:04:17,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 01:04:17,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:17,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 01:04:17,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:04:17,190 INFO L87 Difference]: Start difference. First operand 169 states and 199 transitions. Second operand 6 states. [2020-10-24 01:04:17,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:17,597 INFO L93 Difference]: Finished difference Result 421 states and 524 transitions. [2020-10-24 01:04:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 01:04:17,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2020-10-24 01:04:17,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:17,602 INFO L225 Difference]: With dead ends: 421 [2020-10-24 01:04:17,602 INFO L226 Difference]: Without dead ends: 274 [2020-10-24 01:04:17,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-24 01:04:17,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-24 01:04:17,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 209. [2020-10-24 01:04:17,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-24 01:04:17,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 250 transitions. [2020-10-24 01:04:17,659 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 250 transitions. Word has length 47 [2020-10-24 01:04:17,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:17,660 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 250 transitions. [2020-10-24 01:04:17,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 01:04:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 250 transitions. [2020-10-24 01:04:17,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-24 01:04:17,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:17,671 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:04:17,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:04:17,672 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:17,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:17,673 INFO L82 PathProgramCache]: Analyzing trace with hash -255317781, now seen corresponding path program 1 times [2020-10-24 01:04:17,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:17,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971499097] [2020-10-24 01:04:17,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:17,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:17,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 01:04:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:17,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:04:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:17,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-24 01:04:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:04:17,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971499097] [2020-10-24 01:04:17,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:04:17,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:04:17,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783395774] [2020-10-24 01:04:17,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:04:17,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:17,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:04:17,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:04:17,879 INFO L87 Difference]: Start difference. First operand 209 states and 250 transitions. Second operand 8 states. [2020-10-24 01:04:18,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:18,416 INFO L93 Difference]: Finished difference Result 523 states and 653 transitions. [2020-10-24 01:04:18,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-24 01:04:18,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-24 01:04:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:18,421 INFO L225 Difference]: With dead ends: 523 [2020-10-24 01:04:18,421 INFO L226 Difference]: Without dead ends: 336 [2020-10-24 01:04:18,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-24 01:04:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-10-24 01:04:18,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 249. [2020-10-24 01:04:18,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-24 01:04:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 305 transitions. [2020-10-24 01:04:18,460 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 305 transitions. Word has length 68 [2020-10-24 01:04:18,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:18,461 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 305 transitions. [2020-10-24 01:04:18,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:04:18,461 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 305 transitions. [2020-10-24 01:04:18,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-24 01:04:18,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:18,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-24 01:04:18,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:04:18,463 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:18,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:18,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1130016885, now seen corresponding path program 1 times [2020-10-24 01:04:18,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:18,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151994516] [2020-10-24 01:04:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:18,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:18,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 01:04:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:18,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:04:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:18,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-24 01:04:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:18,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-24 01:04:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:18,631 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-24 01:04:18,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151994516] [2020-10-24 01:04:18,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:18,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 01:04:18,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819950378] [2020-10-24 01:04:18,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 01:04:18,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:18,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 01:04:18,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:04:18,634 INFO L87 Difference]: Start difference. First operand 249 states and 305 transitions. Second operand 6 states. [2020-10-24 01:04:19,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:19,323 INFO L93 Difference]: Finished difference Result 863 states and 1097 transitions. [2020-10-24 01:04:19,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 01:04:19,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-10-24 01:04:19,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:19,331 INFO L225 Difference]: With dead ends: 863 [2020-10-24 01:04:19,332 INFO L226 Difference]: Without dead ends: 636 [2020-10-24 01:04:19,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-24 01:04:19,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2020-10-24 01:04:19,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 402. [2020-10-24 01:04:19,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-10-24 01:04:19,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 498 transitions. [2020-10-24 01:04:19,441 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 498 transitions. Word has length 88 [2020-10-24 01:04:19,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:19,442 INFO L481 AbstractCegarLoop]: Abstraction has 402 states and 498 transitions. [2020-10-24 01:04:19,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 01:04:19,445 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 498 transitions. [2020-10-24 01:04:19,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-24 01:04:19,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:19,449 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-24 01:04:19,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:04:19,450 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:19,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:19,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1472238029, now seen corresponding path program 1 times [2020-10-24 01:04:19,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:19,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138334239] [2020-10-24 01:04:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:19,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 01:04:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:19,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:04:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:19,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-24 01:04:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:19,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 01:04:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:19,581 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-24 01:04:19,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138334239] [2020-10-24 01:04:19,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:19,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 01:04:19,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817788051] [2020-10-24 01:04:19,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 01:04:19,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:19,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 01:04:19,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:04:19,584 INFO L87 Difference]: Start difference. First operand 402 states and 498 transitions. Second operand 6 states. [2020-10-24 01:04:19,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:19,976 INFO L93 Difference]: Finished difference Result 938 states and 1175 transitions. [2020-10-24 01:04:19,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-24 01:04:19,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-10-24 01:04:19,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:19,982 INFO L225 Difference]: With dead ends: 938 [2020-10-24 01:04:19,982 INFO L226 Difference]: Without dead ends: 558 [2020-10-24 01:04:19,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:04:19,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-10-24 01:04:20,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 408. [2020-10-24 01:04:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-10-24 01:04:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 498 transitions. [2020-10-24 01:04:20,043 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 498 transitions. Word has length 89 [2020-10-24 01:04:20,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:20,043 INFO L481 AbstractCegarLoop]: Abstraction has 408 states and 498 transitions. [2020-10-24 01:04:20,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 01:04:20,043 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 498 transitions. [2020-10-24 01:04:20,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-24 01:04:20,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:20,045 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-24 01:04:20,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:04:20,046 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:20,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:20,046 INFO L82 PathProgramCache]: Analyzing trace with hash 2103210319, now seen corresponding path program 1 times [2020-10-24 01:04:20,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:20,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754366813] [2020-10-24 01:04:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:20,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:20,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 01:04:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:20,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:04:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:20,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-24 01:04:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:20,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-24 01:04:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-24 01:04:20,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754366813] [2020-10-24 01:04:20,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:20,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-24 01:04:20,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136009925] [2020-10-24 01:04:20,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:04:20,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:20,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:04:20,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:04:20,208 INFO L87 Difference]: Start difference. First operand 408 states and 498 transitions. Second operand 8 states. [2020-10-24 01:04:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:20,882 INFO L93 Difference]: Finished difference Result 1180 states and 1519 transitions. [2020-10-24 01:04:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-24 01:04:20,882 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2020-10-24 01:04:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:20,891 INFO L225 Difference]: With dead ends: 1180 [2020-10-24 01:04:20,891 INFO L226 Difference]: Without dead ends: 794 [2020-10-24 01:04:20,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-24 01:04:20,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2020-10-24 01:04:20,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 488. [2020-10-24 01:04:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-24 01:04:20,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 612 transitions. [2020-10-24 01:04:20,978 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 612 transitions. Word has length 88 [2020-10-24 01:04:20,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:20,980 INFO L481 AbstractCegarLoop]: Abstraction has 488 states and 612 transitions. [2020-10-24 01:04:20,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:04:20,980 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 612 transitions. [2020-10-24 01:04:20,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-24 01:04:20,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:20,988 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-24 01:04:20,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:04:20,988 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:20,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:20,989 INFO L82 PathProgramCache]: Analyzing trace with hash -583058978, now seen corresponding path program 1 times [2020-10-24 01:04:20,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:20,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314077514] [2020-10-24 01:04:20,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 01:04:21,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 01:04:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 01:04:21,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 01:04:21,110 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 01:04:21,110 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 01:04:21,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 01:04:21,186 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,187 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,191 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,191 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,192 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,193 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,196 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,197 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,198 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,198 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,199 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,202 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,202 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,206 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,207 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,207 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,208 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,210 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,211 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,211 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-24 01:04:21,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:04:21 BoogieIcfgContainer [2020-10-24 01:04:21,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 01:04:21,245 INFO L168 Benchmark]: Toolchain (without parser) took 6986.63 ms. Allocated memory was 164.6 MB in the beginning and 255.9 MB in the end (delta: 91.2 MB). Free memory was 140.9 MB in the beginning and 204.2 MB in the end (delta: -63.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:21,250 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 164.6 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 01:04:21,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.65 ms. Allocated memory is still 164.6 MB. Free memory was 140.3 MB in the beginning and 130.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:21,254 INFO L168 Benchmark]: Boogie Preprocessor took 42.68 ms. Allocated memory is still 164.6 MB. Free memory was 130.2 MB in the beginning and 128.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:21,255 INFO L168 Benchmark]: RCFGBuilder took 585.55 ms. Allocated memory is still 164.6 MB. Free memory was 128.6 MB in the beginning and 138.6 MB in the end (delta: -9.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:21,256 INFO L168 Benchmark]: TraceAbstraction took 6076.05 ms. Allocated memory was 164.6 MB in the beginning and 255.9 MB in the end (delta: 91.2 MB). Free memory was 138.1 MB in the beginning and 204.2 MB in the end (delta: -66.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:21,263 INFO L339 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 164.6 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 270.65 ms. Allocated memory is still 164.6 MB. Free memory was 140.3 MB in the beginning and 130.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.68 ms. Allocated memory is still 164.6 MB. Free memory was 130.2 MB in the beginning and 128.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 585.55 ms. Allocated memory is still 164.6 MB. Free memory was 128.6 MB in the beginning and 138.6 MB in the end (delta: -9.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6076.05 ms. Allocated memory was 164.6 MB in the beginning and 255.9 MB in the end (delta: 91.2 MB). Free memory was 138.1 MB in the beginning and 204.2 MB in the end (delta: -66.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch11 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int ldv_mutex = 1; VAL [\old(ldv_mutex)=55, \old(open_called)=51, ldv_mutex=1, open_called=51] [L13] int open_called = 0; VAL [\old(ldv_mutex)=55, \old(open_called)=51, ldv_mutex=1, open_called=0] [L76] int ldv_s_misc_fops_file_operations = 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L77] CALL my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L71] open_called = 0 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L72] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L77] RET my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, my_init()=0, open_called=0] [L78] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L82] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L83] COND TRUE ldv_s_misc_fops_file_operations==0 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L84] CALL misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L59] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, open_called=0] [L61] return 1; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=1, ldv_mutex=1, open_called=0] [L84] RET misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, misc_open()=1, open_called=0] [L85] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L78] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L82] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L90] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L91] COND TRUE ldv_s_misc_fops_file_operations==1 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L92] CALL misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L54] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L92] RET misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, misc_read()=0, open_called=0] [L93] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L78] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L82] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L90] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L98] case 2: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L99] COND TRUE ldv_s_misc_fops_file_operations==2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L100] CALL misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L50] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L100] RET misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, misc_llseek()=0, open_called=0] [L101] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L78] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L82] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L90] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L98] case 2: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L106] case 3: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L107] COND TRUE ldv_s_misc_fops_file_operations==3 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L108] CALL misc_release() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L36] COND FALSE !(\read(open_called)) VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L43] CALL mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L18] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L19] ldv_mutex = 2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L43] RET mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L44] CALL mutex_lock() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L18] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L18] CALL __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L6] CALL reach_error() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L3] __assert_fail("0", "stateful_check.c", 3, "reach_error") VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 117 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.8s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 847 SDtfs, 1261 SDslu, 1529 SDs, 0 SdLazy, 1445 SolverSat, 335 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=488occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 851 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 548 NumberOfCodeBlocks, 548 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 431 ConstructedInterpolants, 0 QuantifiedInterpolants, 76187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 68/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...