/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/weaver/parallel-simple-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 01:33:20,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 01:33:20,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 01:33:21,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 01:33:21,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 01:33:21,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 01:33:21,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 01:33:21,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 01:33:21,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 01:33:21,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 01:33:21,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 01:33:21,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 01:33:21,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 01:33:21,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 01:33:21,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 01:33:21,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 01:33:21,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 01:33:21,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 01:33:21,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 01:33:21,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 01:33:21,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 01:33:21,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 01:33:21,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 01:33:21,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 01:33:21,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 01:33:21,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 01:33:21,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 01:33:21,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 01:33:21,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 01:33:21,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 01:33:21,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 01:33:21,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 01:33:21,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 01:33:21,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 01:33:21,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 01:33:21,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 01:33:21,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 01:33:21,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 01:33:21,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 01:33:21,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 01:33:21,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 01:33:21,072 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 [2022-01-18 01:33:21,098 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 01:33:21,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 01:33:21,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 01:33:21,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 01:33:21,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 01:33:21,099 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 01:33:21,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 01:33:21,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 01:33:21,100 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 01:33:21,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 01:33:21,100 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 01:33:21,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 01:33:21,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 01:33:21,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 01:33:21,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 01:33:21,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:33:21,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 01:33:21,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 01:33:21,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 01:33:21,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 01:33:21,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 01:33:21,103 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 01:33:21,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 01:33:21,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 01:33:21,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 01:33:21,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 01:33:21,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 01:33:21,264 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 01:33:21,265 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 01:33:21,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-01-18 01:33:21,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c53fba351/ce2632b542434088b31106b371a4e562/FLAG0848a58a5 [2022-01-18 01:33:21,629 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 01:33:21,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-01-18 01:33:21,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c53fba351/ce2632b542434088b31106b371a4e562/FLAG0848a58a5 [2022-01-18 01:33:22,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c53fba351/ce2632b542434088b31106b371a4e562 [2022-01-18 01:33:22,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 01:33:22,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 01:33:22,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 01:33:22,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 01:33:22,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 01:33:22,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a41e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22, skipping insertion in model container [2022-01-18 01:33:22,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 01:33:22,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 01:33:22,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-01-18 01:33:22,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:33:22,225 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 01:33:22,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-01-18 01:33:22,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:33:22,246 INFO L208 MainTranslator]: Completed translation [2022-01-18 01:33:22,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22 WrapperNode [2022-01-18 01:33:22,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 01:33:22,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 01:33:22,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 01:33:22,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 01:33:22,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,268 INFO L137 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-01-18 01:33:22,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 01:33:22,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 01:33:22,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 01:33:22,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 01:33:22,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 01:33:22,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 01:33:22,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 01:33:22,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 01:33:22,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (1/1) ... [2022-01-18 01:33:22,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:33:22,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:33:22,315 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) [2022-01-18 01:33:22,324 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 [2022-01-18 01:33:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 01:33:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 01:33:22,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 01:33:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 01:33:22,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 01:33:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 01:33:22,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 01:33:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 01:33:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 01:33:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 01:33:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 01:33:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 01:33:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 01:33:22,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 01:33:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 01:33:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 01:33:22,341 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 01:33:22,389 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 01:33:22,390 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 01:33:22,502 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 01:33:22,518 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 01:33:22,518 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 01:33:22,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:33:22 BoogieIcfgContainer [2022-01-18 01:33:22,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 01:33:22,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 01:33:22,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 01:33:22,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 01:33:22,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:33:22" (1/3) ... [2022-01-18 01:33:22,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5275002e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:33:22, skipping insertion in model container [2022-01-18 01:33:22,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:33:22" (2/3) ... [2022-01-18 01:33:22,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5275002e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:33:22, skipping insertion in model container [2022-01-18 01:33:22,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:33:22" (3/3) ... [2022-01-18 01:33:22,526 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2022-01-18 01:33:22,529 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 01:33:22,529 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 01:33:22,529 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 01:33:22,529 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 01:33:22,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,556 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,557 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,557 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,557 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,559 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,559 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:33:22,565 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 01:33:22,592 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 01:33:22,596 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 [2022-01-18 01:33:22,597 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 01:33:22,603 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 94 transitions, 212 flow [2022-01-18 01:33:22,668 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 718 states, 717 states have (on average 2.7601115760111576) internal successors, (1979), 717 states have internal predecessors, (1979), 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) [2022-01-18 01:33:22,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 718 states, 717 states have (on average 2.7601115760111576) internal successors, (1979), 717 states have internal predecessors, (1979), 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) [2022-01-18 01:33:22,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 01:33:22,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:33:22,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:33:22,690 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:33:22,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:33:22,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1730819524, now seen corresponding path program 1 times [2022-01-18 01:33:22,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:33:22,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541687135] [2022-01-18 01:33:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:33:22,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:33:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:33:23,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:33:23,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:33:23,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541687135] [2022-01-18 01:33:23,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541687135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:33:23,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:33:23,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:33:23,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813058967] [2022-01-18 01:33:23,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:33:23,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:33:23,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:33:23,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:33:23,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:33:23,430 INFO L87 Difference]: Start difference. First operand has 718 states, 717 states have (on average 2.7601115760111576) internal successors, (1979), 717 states have internal predecessors, (1979), 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 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:23,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:33:23,863 INFO L93 Difference]: Finished difference Result 1142 states and 3196 transitions. [2022-01-18 01:33:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:33:23,865 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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 76 [2022-01-18 01:33:23,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:33:23,885 INFO L225 Difference]: With dead ends: 1142 [2022-01-18 01:33:23,886 INFO L226 Difference]: Without dead ends: 743 [2022-01-18 01:33:23,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-01-18 01:33:23,890 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 224 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:33:23,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 801 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:33:23,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-01-18 01:33:23,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 668. [2022-01-18 01:33:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 667 states have (on average 2.658170914542729) internal successors, (1773), 667 states have internal predecessors, (1773), 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) [2022-01-18 01:33:23,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1773 transitions. [2022-01-18 01:33:23,972 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1773 transitions. Word has length 76 [2022-01-18 01:33:23,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:33:23,973 INFO L470 AbstractCegarLoop]: Abstraction has 668 states and 1773 transitions. [2022-01-18 01:33:23,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:23,973 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1773 transitions. [2022-01-18 01:33:23,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 01:33:23,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:33:23,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:33:23,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 01:33:23,981 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:33:23,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:33:23,984 INFO L85 PathProgramCache]: Analyzing trace with hash -862010738, now seen corresponding path program 2 times [2022-01-18 01:33:23,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:33:23,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119668483] [2022-01-18 01:33:23,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:33:23,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:33:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:33:24,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:33:24,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:33:24,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119668483] [2022-01-18 01:33:24,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119668483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:33:24,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:33:24,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:33:24,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832231824] [2022-01-18 01:33:24,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:33:24,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:33:24,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:33:24,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:33:24,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:33:24,312 INFO L87 Difference]: Start difference. First operand 668 states and 1773 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:24,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:33:24,610 INFO L93 Difference]: Finished difference Result 1070 states and 2914 transitions. [2022-01-18 01:33:24,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:33:24,610 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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 76 [2022-01-18 01:33:24,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:33:24,613 INFO L225 Difference]: With dead ends: 1070 [2022-01-18 01:33:24,613 INFO L226 Difference]: Without dead ends: 554 [2022-01-18 01:33:24,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-18 01:33:24,614 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 194 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:33:24,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 799 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:33:24,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-01-18 01:33:24,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 506. [2022-01-18 01:33:24,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 2.6514851485148516) internal successors, (1339), 505 states have internal predecessors, (1339), 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) [2022-01-18 01:33:24,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 1339 transitions. [2022-01-18 01:33:24,625 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 1339 transitions. Word has length 76 [2022-01-18 01:33:24,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:33:24,626 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 1339 transitions. [2022-01-18 01:33:24,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:24,626 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 1339 transitions. [2022-01-18 01:33:24,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 01:33:24,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:33:24,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:33:24,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 01:33:24,627 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:33:24,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:33:24,628 INFO L85 PathProgramCache]: Analyzing trace with hash -772275794, now seen corresponding path program 3 times [2022-01-18 01:33:24,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:33:24,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799197426] [2022-01-18 01:33:24,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:33:24,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:33:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:33:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:33:24,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:33:24,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799197426] [2022-01-18 01:33:24,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799197426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:33:24,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:33:24,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:33:24,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749456122] [2022-01-18 01:33:24,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:33:24,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:33:24,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:33:24,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:33:24,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:33:24,888 INFO L87 Difference]: Start difference. First operand 506 states and 1339 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:25,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:33:25,118 INFO L93 Difference]: Finished difference Result 704 states and 1861 transitions. [2022-01-18 01:33:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:33:25,118 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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 76 [2022-01-18 01:33:25,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:33:25,120 INFO L225 Difference]: With dead ends: 704 [2022-01-18 01:33:25,120 INFO L226 Difference]: Without dead ends: 383 [2022-01-18 01:33:25,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-18 01:33:25,122 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 164 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:33:25,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 681 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:33:25,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-01-18 01:33:25,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2022-01-18 01:33:25,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 2.5785340314136125) internal successors, (985), 382 states have internal predecessors, (985), 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) [2022-01-18 01:33:25,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 985 transitions. [2022-01-18 01:33:25,130 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 985 transitions. Word has length 76 [2022-01-18 01:33:25,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:33:25,131 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 985 transitions. [2022-01-18 01:33:25,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 985 transitions. [2022-01-18 01:33:25,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 01:33:25,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:33:25,132 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:33:25,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 01:33:25,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:33:25,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:33:25,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1755740052, now seen corresponding path program 4 times [2022-01-18 01:33:25,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:33:25,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173798305] [2022-01-18 01:33:25,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:33:25,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:33:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:33:25,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:33:25,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:33:25,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173798305] [2022-01-18 01:33:25,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173798305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:33:25,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:33:25,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:33:25,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055578069] [2022-01-18 01:33:25,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:33:25,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:33:25,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:33:25,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:33:25,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:33:25,386 INFO L87 Difference]: Start difference. First operand 383 states and 985 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:33:26,538 INFO L93 Difference]: Finished difference Result 533 states and 1366 transitions. [2022-01-18 01:33:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:33:26,539 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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 76 [2022-01-18 01:33:26,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:33:26,541 INFO L225 Difference]: With dead ends: 533 [2022-01-18 01:33:26,541 INFO L226 Difference]: Without dead ends: 290 [2022-01-18 01:33:26,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-01-18 01:33:26,542 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 152 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:33:26,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 524 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 01:33:26,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-01-18 01:33:26,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2022-01-18 01:33:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 2.3079584775086506) internal successors, (667), 289 states have internal predecessors, (667), 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) [2022-01-18 01:33:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 667 transitions. [2022-01-18 01:33:26,548 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 667 transitions. Word has length 76 [2022-01-18 01:33:26,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:33:26,548 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 667 transitions. [2022-01-18 01:33:26,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:26,548 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 667 transitions. [2022-01-18 01:33:26,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 01:33:26,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:33:26,549 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:33:26,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 01:33:26,549 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:33:26,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:33:26,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1929562288, now seen corresponding path program 5 times [2022-01-18 01:33:26,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:33:26,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116309272] [2022-01-18 01:33:26,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:33:26,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:33:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:33:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:33:26,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:33:26,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116309272] [2022-01-18 01:33:26,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116309272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:33:26,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:33:26,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:33:26,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299621029] [2022-01-18 01:33:26,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:33:26,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:33:26,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:33:26,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:33:26,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:33:26,762 INFO L87 Difference]: Start difference. First operand 290 states and 667 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:26,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:33:26,995 INFO L93 Difference]: Finished difference Result 287 states and 664 transitions. [2022-01-18 01:33:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 01:33:26,996 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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 76 [2022-01-18 01:33:26,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:33:26,996 INFO L225 Difference]: With dead ends: 287 [2022-01-18 01:33:26,996 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 01:33:26,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-18 01:33:26,997 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 130 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:33:26,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 645 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:33:26,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 01:33:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 01:33:26,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-01-18 01:33:26,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 01:33:26,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2022-01-18 01:33:26,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:33:26,998 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 01:33:26,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 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) [2022-01-18 01:33:26,999 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 01:33:26,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 01:33:27,000 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 01:33:27,001 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 01:33:27,001 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 01:33:27,001 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 01:33:27,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 01:33:27,003 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-01-18 01:33:27,007 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 01:33:27,008 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 01:33:27,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:33:27 BasicIcfg [2022-01-18 01:33:27,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 01:33:27,015 INFO L158 Benchmark]: Toolchain (without parser) took 4951.83ms. Allocated memory was 396.4MB in the beginning and 568.3MB in the end (delta: 172.0MB). Free memory was 343.6MB in the beginning and 442.5MB in the end (delta: -98.9MB). Peak memory consumption was 73.6MB. Max. memory is 16.0GB. [2022-01-18 01:33:27,015 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 396.4MB. Free memory is still 360.6MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 01:33:27,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.09ms. Allocated memory is still 396.4MB. Free memory was 343.3MB in the beginning and 369.9MB in the end (delta: -26.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.0GB. [2022-01-18 01:33:27,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.80ms. Allocated memory is still 396.4MB. Free memory was 369.9MB in the beginning and 368.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:33:27,015 INFO L158 Benchmark]: Boogie Preprocessor took 13.12ms. Allocated memory is still 396.4MB. Free memory was 368.2MB in the beginning and 367.3MB in the end (delta: 864.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:33:27,016 INFO L158 Benchmark]: RCFGBuilder took 237.10ms. Allocated memory is still 396.4MB. Free memory was 367.0MB in the beginning and 354.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 01:33:27,016 INFO L158 Benchmark]: TraceAbstraction took 4491.26ms. Allocated memory was 396.4MB in the beginning and 568.3MB in the end (delta: 172.0MB). Free memory was 354.0MB in the beginning and 442.5MB in the end (delta: -88.5MB). Peak memory consumption was 84.6MB. Max. memory is 16.0GB. [2022-01-18 01:33:27,017 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 396.4MB. Free memory is still 360.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 182.09ms. Allocated memory is still 396.4MB. Free memory was 343.3MB in the beginning and 369.9MB in the end (delta: -26.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 21.80ms. Allocated memory is still 396.4MB. Free memory was 369.9MB in the beginning and 368.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 13.12ms. Allocated memory is still 396.4MB. Free memory was 368.2MB in the beginning and 367.3MB in the end (delta: 864.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 237.10ms. Allocated memory is still 396.4MB. Free memory was 367.0MB in the beginning and 354.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 4491.26ms. Allocated memory was 396.4MB in the beginning and 568.3MB in the end (delta: 172.0MB). Free memory was 354.0MB in the beginning and 442.5MB in the end (delta: -88.5MB). Peak memory consumption was 84.6MB. 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 - PositiveResult [Line: 82]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 111 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 864 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 864 mSDsluCounter, 3450 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3269 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1203 IncrementalHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 530 mSDtfsCounter, 1203 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 11 SyntacticMatches, 9 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=718occurred in iteration=0, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 123 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 375 ConstructedInterpolants, 0 QuantifiedInterpolants, 6728 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 01:33:27,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...