/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_safe-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 21:54:57,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 21:54:57,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 21:54:57,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-17 21:54:57,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-17 21:54:57,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-17 21:54:57,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-17 21:54:57,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-17 21:54:57,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-17 21:54:57,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-17 21:54:57,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-17 21:54:57,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-17 21:54:57,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-17 21:54:57,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-17 21:54:57,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-17 21:54:57,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-17 21:54:57,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-17 21:54:57,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-17 21:54:57,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-17 21:54:57,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-17 21:54:57,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-17 21:54:57,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-17 21:54:57,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-17 21:54:57,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-17 21:54:57,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-17 21:54:57,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-17 21:54:57,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-17 21:54:57,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-17 21:54:57,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-17 21:54:57,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-17 21:54:57,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-17 21:54:57,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-17 21:54:57,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-17 21:54:57,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-17 21:54:57,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-17 21:54:57,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-17 21:54:57,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-17 21:54:57,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-17 21:54:57,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 21:54:57,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 21:54:57,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 21:54:57,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-17 21:54:57,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 21:54:57,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 21:54:57,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 21:54:57,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 21:54:57,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 21:54:57,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 21:54:57,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 21:54:57,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 21:54:57,410 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 21:54:57,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 21:54:57,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 21:54:57,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 21:54:57,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 21:54:57,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 21:54:57,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 21:54:57,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 21:54:57,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 21:54:57,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 21:54:57,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 21:54:57,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 21:54:57,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 21:54:57,413 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 21:54:57,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 21:54:57,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 21:54:57,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 21:54:57,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 21:54:57,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 21:54:57,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 21:54:57,589 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 21:54:57,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_safe-10.i [2022-01-17 21:54:57,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df5708043/1b26aa1485fd4bcb96a9ece7a6f321bf/FLAGcccfee71f [2022-01-17 21:54:58,039 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 21:54:58,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-10.i [2022-01-17 21:54:58,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df5708043/1b26aa1485fd4bcb96a9ece7a6f321bf/FLAGcccfee71f [2022-01-17 21:54:58,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df5708043/1b26aa1485fd4bcb96a9ece7a6f321bf [2022-01-17 21:54:58,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 21:54:58,069 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 21:54:58,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 21:54:58,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 21:54:58,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 21:54:58,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b1a4bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58, skipping insertion in model container [2022-01-17 21:54:58,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 21:54:58,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 21:54:58,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-10.i[30815,30828] [2022-01-17 21:54:58,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 21:54:58,367 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 21:54:58,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-10.i[30815,30828] [2022-01-17 21:54:58,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 21:54:58,437 INFO L208 MainTranslator]: Completed translation [2022-01-17 21:54:58,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58 WrapperNode [2022-01-17 21:54:58,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 21:54:58,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 21:54:58,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 21:54:58,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 21:54:58,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,465 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-01-17 21:54:58,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 21:54:58,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 21:54:58,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 21:54:58,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 21:54:58,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 21:54:58,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 21:54:58,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 21:54:58,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 21:54:58,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (1/1) ... [2022-01-17 21:54:58,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 21:54:58,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 21:54:58,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-17 21:54:58,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-17 21:54:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-01-17 21:54:58,537 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-01-17 21:54:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-01-17 21:54:58,537 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-01-17 21:54:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 21:54:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-17 21:54:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 21:54:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 21:54:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 21:54:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 21:54:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-17 21:54:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 21:54:58,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 21:54:58,539 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 21:54:58,637 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 21:54:58,638 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 21:54:58,820 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 21:54:58,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 21:54:58,824 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-17 21:54:58,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 09:54:58 BoogieIcfgContainer [2022-01-17 21:54:58,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 21:54:58,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 21:54:58,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 21:54:58,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 21:54:58,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 09:54:58" (1/3) ... [2022-01-17 21:54:58,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9bf54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 09:54:58, skipping insertion in model container [2022-01-17 21:54:58,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 09:54:58" (2/3) ... [2022-01-17 21:54:58,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9bf54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 09:54:58, skipping insertion in model container [2022-01-17 21:54:58,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 09:54:58" (3/3) ... [2022-01-17 21:54:58,834 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_safe-10.i [2022-01-17 21:54:58,837 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 21:54:58,838 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 21:54:58,838 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-17 21:54:58,838 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 21:54:58,882 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,882 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,882 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,882 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,882 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,883 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,883 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,883 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,884 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,884 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,885 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,885 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,885 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,885 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,885 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,885 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,887 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,887 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,887 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,887 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,887 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,888 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,888 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,888 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,888 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,888 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,889 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,889 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,890 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,890 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,892 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,892 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,892 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,892 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,892 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,892 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,895 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,896 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,896 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,896 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,896 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,898 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,898 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,899 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,899 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,899 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 21:54:58,899 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-17 21:54:58,936 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 21:54:58,945 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-17 21:54:58,945 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-17 21:54:58,957 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 96 transitions, 202 flow [2022-01-17 21:54:59,056 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:54:59,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:54:59,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-17 21:54:59,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 21:54:59,084 INFO L514 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, 1, 1] [2022-01-17 21:54:59,085 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 21:54:59,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 21:54:59,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times [2022-01-17 21:54:59,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 21:54:59,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383155340] [2022-01-17 21:54:59,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 21:54:59,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 21:54:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 21:54:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:54:59,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 21:54:59,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383155340] [2022-01-17 21:54:59,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383155340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 21:54:59,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 21:54:59,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-17 21:54:59,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728482339] [2022-01-17 21:54:59,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 21:54:59,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-17 21:54:59,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 21:54:59,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-17 21:54:59,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-17 21:54:59,334 INFO L87 Difference]: Start difference. First operand has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:54:59,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 21:54:59,385 INFO L93 Difference]: Finished difference Result 2292 states and 6752 transitions. [2022-01-17 21:54:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-17 21:54:59,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-17 21:54:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 21:54:59,426 INFO L225 Difference]: With dead ends: 2292 [2022-01-17 21:54:59,427 INFO L226 Difference]: Without dead ends: 2292 [2022-01-17 21:54:59,428 INFO L932 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 [2022-01-17 21:54:59,430 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 21:54:59,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 21:54:59,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-01-17 21:54:59,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2022-01-17 21:54:59,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 2291 states have (on average 2.947184635530336) internal successors, (6752), 2291 states have internal predecessors, (6752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:54:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 6752 transitions. [2022-01-17 21:54:59,549 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 6752 transitions. Word has length 53 [2022-01-17 21:54:59,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 21:54:59,550 INFO L470 AbstractCegarLoop]: Abstraction has 2292 states and 6752 transitions. [2022-01-17 21:54:59,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:54:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 6752 transitions. [2022-01-17 21:54:59,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-17 21:54:59,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 21:54:59,554 INFO L514 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, 1, 1] [2022-01-17 21:54:59,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 21:54:59,555 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 21:54:59,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 21:54:59,555 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times [2022-01-17 21:54:59,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 21:54:59,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074492777] [2022-01-17 21:54:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 21:54:59,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 21:54:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 21:54:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:54:59,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 21:54:59,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074492777] [2022-01-17 21:54:59,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074492777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 21:54:59,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 21:54:59,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-17 21:54:59,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348596907] [2022-01-17 21:54:59,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 21:54:59,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-17 21:54:59,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 21:54:59,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-17 21:54:59,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 21:54:59,610 INFO L87 Difference]: Start difference. First operand 2292 states and 6752 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:54:59,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 21:54:59,647 INFO L93 Difference]: Finished difference Result 2892 states and 8552 transitions. [2022-01-17 21:54:59,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-17 21:54:59,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-17 21:54:59,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 21:54:59,660 INFO L225 Difference]: With dead ends: 2892 [2022-01-17 21:54:59,661 INFO L226 Difference]: Without dead ends: 2892 [2022-01-17 21:54:59,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 21:54:59,662 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 51 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 21:54:59,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 124 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 21:54:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2022-01-17 21:54:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2392. [2022-01-17 21:54:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2391 states have (on average 2.949393559180259) internal successors, (7052), 2391 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:54:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 7052 transitions. [2022-01-17 21:54:59,753 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 7052 transitions. Word has length 53 [2022-01-17 21:54:59,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 21:54:59,753 INFO L470 AbstractCegarLoop]: Abstraction has 2392 states and 7052 transitions. [2022-01-17 21:54:59,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:54:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 7052 transitions. [2022-01-17 21:54:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-17 21:54:59,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 21:54:59,757 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 21:54:59,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 21:54:59,757 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 21:54:59,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 21:54:59,758 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times [2022-01-17 21:54:59,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 21:54:59,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599363846] [2022-01-17 21:54:59,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 21:54:59,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 21:54:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 21:54:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:54:59,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 21:54:59,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599363846] [2022-01-17 21:54:59,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599363846] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 21:54:59,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56282567] [2022-01-17 21:54:59,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 21:54:59,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 21:54:59,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 21:54:59,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 21:54:59,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-17 21:54:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 21:54:59,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-17 21:54:59,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 21:55:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:00,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 21:55:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:00,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56282567] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 21:55:00,128 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 21:55:00,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-17 21:55:00,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47429562] [2022-01-17 21:55:00,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 21:55:00,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-17 21:55:00,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 21:55:00,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-17 21:55:00,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-17 21:55:00,133 INFO L87 Difference]: Start difference. First operand 2392 states and 7052 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:55:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 21:55:00,215 INFO L93 Difference]: Finished difference Result 3792 states and 11252 transitions. [2022-01-17 21:55:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 21:55:00,215 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-17 21:55:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 21:55:00,230 INFO L225 Difference]: With dead ends: 3792 [2022-01-17 21:55:00,230 INFO L226 Difference]: Without dead ends: 3792 [2022-01-17 21:55:00,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-17 21:55:00,233 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 352 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 21:55:00,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 402 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 21:55:00,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2022-01-17 21:55:00,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3792. [2022-01-17 21:55:00,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 3791 states have (on average 2.9680823001846477) internal successors, (11252), 3791 states have internal predecessors, (11252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:55:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 11252 transitions. [2022-01-17 21:55:00,360 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 11252 transitions. Word has length 60 [2022-01-17 21:55:00,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 21:55:00,360 INFO L470 AbstractCegarLoop]: Abstraction has 3792 states and 11252 transitions. [2022-01-17 21:55:00,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:55:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 11252 transitions. [2022-01-17 21:55:00,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-17 21:55:00,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 21:55:00,367 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 21:55:00,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-17 21:55:00,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 21:55:00,585 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 21:55:00,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 21:55:00,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times [2022-01-17 21:55:00,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 21:55:00,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128238910] [2022-01-17 21:55:00,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 21:55:00,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 21:55:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 21:55:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:00,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 21:55:00,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128238910] [2022-01-17 21:55:00,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128238910] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 21:55:00,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804918289] [2022-01-17 21:55:00,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-17 21:55:00,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 21:55:00,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 21:55:00,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 21:55:00,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-17 21:55:00,722 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-17 21:55:00,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 21:55:00,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-17 21:55:00,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 21:55:00,842 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:00,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 21:55:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:00,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804918289] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 21:55:00,968 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 21:55:00,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-17 21:55:00,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755393273] [2022-01-17 21:55:00,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 21:55:00,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 21:55:00,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 21:55:00,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 21:55:00,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-17 21:55:00,969 INFO L87 Difference]: Start difference. First operand 3792 states and 11252 transitions. Second operand has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:55:01,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 21:55:01,137 INFO L93 Difference]: Finished difference Result 6592 states and 19652 transitions. [2022-01-17 21:55:01,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 21:55:01,138 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-17 21:55:01,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 21:55:01,164 INFO L225 Difference]: With dead ends: 6592 [2022-01-17 21:55:01,165 INFO L226 Difference]: Without dead ends: 6592 [2022-01-17 21:55:01,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-01-17 21:55:01,166 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 1142 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 21:55:01,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 626 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 21:55:01,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2022-01-17 21:55:01,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 6592. [2022-01-17 21:55:01,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6592 states, 6591 states have (on average 2.9816416325292066) internal successors, (19652), 6591 states have internal predecessors, (19652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:55:01,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6592 states to 6592 states and 19652 transitions. [2022-01-17 21:55:01,341 INFO L78 Accepts]: Start accepts. Automaton has 6592 states and 19652 transitions. Word has length 74 [2022-01-17 21:55:01,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 21:55:01,342 INFO L470 AbstractCegarLoop]: Abstraction has 6592 states and 19652 transitions. [2022-01-17 21:55:01,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:55:01,342 INFO L276 IsEmpty]: Start isEmpty. Operand 6592 states and 19652 transitions. [2022-01-17 21:55:01,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-17 21:55:01,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 21:55:01,355 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 21:55:01,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-17 21:55:01,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-17 21:55:01,571 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 21:55:01,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 21:55:01,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times [2022-01-17 21:55:01,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 21:55:01,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760899208] [2022-01-17 21:55:01,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 21:55:01,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 21:55:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 21:55:01,724 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:01,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 21:55:01,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760899208] [2022-01-17 21:55:01,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760899208] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 21:55:01,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479256195] [2022-01-17 21:55:01,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-17 21:55:01,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 21:55:01,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 21:55:01,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 21:55:01,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-17 21:55:01,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-01-17 21:55:01,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 21:55:01,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-17 21:55:01,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 21:55:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:01,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 21:55:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:02,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479256195] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 21:55:02,204 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 21:55:02,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-01-17 21:55:02,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919673653] [2022-01-17 21:55:02,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 21:55:02,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 21:55:02,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 21:55:02,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 21:55:02,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 21:55:02,206 INFO L87 Difference]: Start difference. First operand 6592 states and 19652 transitions. Second operand has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:55:02,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 21:55:02,761 INFO L93 Difference]: Finished difference Result 12192 states and 36452 transitions. [2022-01-17 21:55:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-17 21:55:02,761 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-17 21:55:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 21:55:02,791 INFO L225 Difference]: With dead ends: 12192 [2022-01-17 21:55:02,791 INFO L226 Difference]: Without dead ends: 12192 [2022-01-17 21:55:02,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-01-17 21:55:02,793 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 2811 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 21:55:02,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 1197 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 21:55:02,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12192 states. [2022-01-17 21:55:03,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12192 to 12192. [2022-01-17 21:55:03,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12192 states, 12191 states have (on average 2.990074645230088) internal successors, (36452), 12191 states have internal predecessors, (36452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:55:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12192 states to 12192 states and 36452 transitions. [2022-01-17 21:55:03,099 INFO L78 Accepts]: Start accepts. Automaton has 12192 states and 36452 transitions. Word has length 102 [2022-01-17 21:55:03,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 21:55:03,100 INFO L470 AbstractCegarLoop]: Abstraction has 12192 states and 36452 transitions. [2022-01-17 21:55:03,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 21:55:03,101 INFO L276 IsEmpty]: Start isEmpty. Operand 12192 states and 36452 transitions. [2022-01-17 21:55:03,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-17 21:55:03,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 21:55:03,127 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 21:55:03,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-17 21:55:03,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 21:55:03,345 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 21:55:03,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 21:55:03,346 INFO L85 PathProgramCache]: Analyzing trace with hash 835265426, now seen corresponding path program 4 times [2022-01-17 21:55:03,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 21:55:03,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767574140] [2022-01-17 21:55:03,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 21:55:03,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 21:55:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 21:55:03,706 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:03,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 21:55:03,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767574140] [2022-01-17 21:55:03,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767574140] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 21:55:03,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136167460] [2022-01-17 21:55:03,707 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-17 21:55:03,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 21:55:03,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 21:55:03,708 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 21:55:03,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-17 21:55:03,787 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-17 21:55:03,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 21:55:03,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 50 conjunts are in the unsatisfiable core [2022-01-17 21:55:03,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 21:55:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 572 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 21:55:06,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 22:08:24,824 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_~i~0_8 Int)) (or (forall ((v_~j~0_8 Int)) (or (forall ((v_~cur~0_30 Int)) (or (< v_~cur~0_30 (+ c_~prev~0 c_~cur~0)) (and (forall ((v_~cur~0_28 Int) (aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse0 (* 2 v_~cur~0_26))) (or (< aux_div_v_~cur~0_22_51 (+ .cse0 v_~cur~0_28 v_~cur~0_30 1 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< v_~cur~0_26 (+ (* 2 v_~cur~0_28) v_~cur~0_30 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 21 aux_mod_v_~cur~0_22_51 (* 2 v_~j~0_8) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (< v_~prev~0_24 (+ v_~cur~0_28 v_~cur~0_26 v_~cur~0_30 c_~cur~0)) (< v_~cur~0_28 (+ (* 2 v_~cur~0_30) c_~cur~0)) (< (+ aux_mod_v_~next~0_20_56 (* 2 aux_mod_v_~cur~0_22_51) 10 v_~j~0_8) (+ .cse0 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_28 v_~cur~0_30 c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56)))) (forall ((v_~cur~0_28 Int) (aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse1 (* 2 v_~cur~0_26))) (or (< (+ aux_mod_v_~next~0_20_56 (* 2 aux_mod_v_~cur~0_22_51) 10 v_~i~0_8) (+ .cse1 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_28 v_~cur~0_30 c_~cur~0)) (< aux_div_v_~cur~0_22_51 (+ .cse1 v_~cur~0_28 v_~cur~0_30 1 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< v_~cur~0_26 (+ (* 2 v_~cur~0_28) v_~cur~0_30 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (> 0 aux_mod_v_~cur~0_22_51) (< v_~prev~0_24 (+ v_~cur~0_28 v_~cur~0_26 v_~cur~0_30 c_~cur~0)) (< v_~cur~0_28 (+ (* 2 v_~cur~0_30) c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ (* 2 v_~i~0_8) 21 aux_mod_v_~cur~0_22_51 (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56))))))) (not (<= v_~j~0_8 1)))) (not (<= v_~i~0_8 1)))) is different from false Received shutdown request... [2022-01-17 22:09:30,909 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-17 22:09:30,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-17 22:09:30,916 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-17 22:09:30,910 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-17 22:09:30,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-17 22:09:31,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 22:09:31,123 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 5ms.. [2022-01-17 22:09:31,124 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-17 22:09:31,125 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-17 22:09:31,126 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-01-17 22:09:31,128 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 22:09:31,128 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 22:09:31,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 10:09:31 BasicIcfg [2022-01-17 22:09:31,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 22:09:31,129 INFO L158 Benchmark]: Toolchain (without parser) took 873060.87ms. Allocated memory was 413.1MB in the beginning and 1.2GB in the end (delta: 817.9MB). Free memory was 355.8MB in the beginning and 871.7MB in the end (delta: -515.9MB). Peak memory consumption was 766.8MB. Max. memory is 16.0GB. [2022-01-17 22:09:31,130 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 413.1MB. Free memory is still 374.3MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 22:09:31,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.49ms. Allocated memory was 413.1MB in the beginning and 654.3MB in the end (delta: 241.2MB). Free memory was 355.7MB in the beginning and 616.7MB in the end (delta: -261.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.0GB. [2022-01-17 22:09:31,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.91ms. Allocated memory is still 654.3MB. Free memory was 616.7MB in the beginning and 615.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 22:09:31,130 INFO L158 Benchmark]: Boogie Preprocessor took 14.62ms. Allocated memory is still 654.3MB. Free memory was 615.5MB in the beginning and 613.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 22:09:31,130 INFO L158 Benchmark]: RCFGBuilder took 345.61ms. Allocated memory is still 654.3MB. Free memory was 613.7MB in the beginning and 599.9MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-17 22:09:31,130 INFO L158 Benchmark]: TraceAbstraction took 872302.07ms. Allocated memory was 654.3MB in the beginning and 1.2GB in the end (delta: 576.7MB). Free memory was 599.9MB in the beginning and 871.7MB in the end (delta: -271.8MB). Peak memory consumption was 769.2MB. Max. memory is 16.0GB. [2022-01-17 22:09:31,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 413.1MB. Free memory is still 374.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 366.49ms. Allocated memory was 413.1MB in the beginning and 654.3MB in the end (delta: 241.2MB). Free memory was 355.7MB in the beginning and 616.7MB in the end (delta: -261.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 26.91ms. Allocated memory is still 654.3MB. Free memory was 616.7MB in the beginning and 615.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 14.62ms. Allocated memory is still 654.3MB. Free memory was 615.5MB in the beginning and 613.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 345.61ms. Allocated memory is still 654.3MB. Free memory was 613.7MB in the beginning and 599.9MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 872302.07ms. Allocated memory was 654.3MB in the beginning and 1.2GB in the end (delta: 576.7MB). Free memory was 599.9MB in the beginning and 871.7MB in the end (delta: -271.8MB). Peak memory consumption was 769.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 726]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 5ms.. - TimeoutResultAtElement [Line: 722]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 5ms.. - TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 5ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 872.2s, OverallIterations: 6, TraceHistogramMax: 15, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4356 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4356 mSDsluCounter, 2427 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2006 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 206 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 439 mSDtfsCounter, 206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 546 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1019 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12192occurred in iteration=5, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 500 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 1285 SizeOfPredicates, 22 NumberOfNonLiveVariables, 552 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 0/537 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 could not prove your program: Timeout Completed graceful shutdown