/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-wmm/safe021_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:16:19,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:16:19,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:16:19,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-17 23:16:19,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-17 23:16:19,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-17 23:16:19,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-17 23:16:19,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-17 23:16:19,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-17 23:16:19,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-17 23:16:19,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-17 23:16:19,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-17 23:16:19,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-17 23:16:19,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-17 23:16:19,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-17 23:16:19,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-17 23:16:19,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-17 23:16:19,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-17 23:16:19,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-17 23:16:19,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-17 23:16:19,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-17 23:16:19,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-17 23:16:19,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-17 23:16:19,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-17 23:16:19,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-17 23:16:19,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-17 23:16:19,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-17 23:16:19,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-17 23:16:19,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-17 23:16:19,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-17 23:16:19,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-17 23:16:19,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-17 23:16:19,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-17 23:16:19,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-17 23:16:19,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-17 23:16:19,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-17 23:16:19,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-17 23:16:19,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-17 23:16:19,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:16:19,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:16:19,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:16:19,955 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 23:16:19,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:16:19,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:16:19,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:16:19,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:16:19,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:16:19,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:16:19,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:16:19,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:16:19,981 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:16:19,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:16:19,981 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:16:19,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:16:19,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:16:19,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:16:19,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:16:19,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:16:19,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:16:19,982 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:16:19,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:16:19,982 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:16:19,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:16:19,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:16:19,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:16:19,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:16:19,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:16:19,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:16:19,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:16:19,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:16:19,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:16:19,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:16:19,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:16:19,995 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:16:19,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:16:19,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:16:20,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:16:20,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:16:20,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:16:20,215 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:16:20,215 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:16:20,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2022-01-17 23:16:20,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23111b5de/0aedc0435bbe4095816f357eba76d1c8/FLAGbdd81784d [2022-01-17 23:16:20,664 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:16:20,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2022-01-17 23:16:20,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23111b5de/0aedc0435bbe4095816f357eba76d1c8/FLAGbdd81784d [2022-01-17 23:16:20,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23111b5de/0aedc0435bbe4095816f357eba76d1c8 [2022-01-17 23:16:20,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:16:20,692 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:16:20,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:16:20,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:16:20,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:16:20,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:16:20" (1/1) ... [2022-01-17 23:16:20,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@921c507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:20, skipping insertion in model container [2022-01-17 23:16:20,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:16:20" (1/1) ... [2022-01-17 23:16:20,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:16:20,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:16:20,899 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-wmm/safe021_tso.i[945,958] [2022-01-17 23:16:21,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:16:21,038 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:16:21,046 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-wmm/safe021_tso.i[945,958] [2022-01-17 23:16:21,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:16:21,100 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:16:21,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21 WrapperNode [2022-01-17 23:16:21,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:16:21,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:16:21,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:16:21,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:16:21,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,143 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-01-17 23:16:21,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:16:21,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:16:21,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:16:21,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:16:21,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:16:21,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:16:21,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:16:21,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:16:21,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (1/1) ... [2022-01-17 23:16:21,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:16:21,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:16:21,211 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 23:16:21,221 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 23:16:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:16:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-17 23:16:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:16:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:16:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:16:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-17 23:16:21,241 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-17 23:16:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-17 23:16:21,241 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-17 23:16:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-17 23:16:21,241 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-17 23:16:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:16:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-17 23:16:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:16:21,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:16:21,243 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 23:16:21,328 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:16:21,329 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:16:21,435 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:16:21,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:16:21,440 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-17 23:16:21,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:16:21 BoogieIcfgContainer [2022-01-17 23:16:21,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:16:21,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:16:21,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:16:21,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:16:21,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:16:20" (1/3) ... [2022-01-17 23:16:21,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d886dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:16:21, skipping insertion in model container [2022-01-17 23:16:21,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:21" (2/3) ... [2022-01-17 23:16:21,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d886dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:16:21, skipping insertion in model container [2022-01-17 23:16:21,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:16:21" (3/3) ... [2022-01-17 23:16:21,447 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.i [2022-01-17 23:16:21,450 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:16:21,450 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:16:21,451 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-17 23:16:21,451 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:16:21,478 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,478 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,478 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,478 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,478 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,478 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,479 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,479 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,479 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,479 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,480 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,480 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,482 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,482 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,482 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,482 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,482 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,482 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,482 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,482 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,483 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,483 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,483 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,483 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,484 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,484 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,484 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,484 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,484 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,484 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,484 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,484 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,485 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,485 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,485 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,485 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,488 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,488 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,488 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,488 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,490 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,490 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,490 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,490 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,491 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,491 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,491 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,492 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:21,492 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-17 23:16:21,518 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:16:21,522 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 23:16:21,522 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-17 23:16:21,531 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 92 transitions, 199 flow [2022-01-17 23:16:21,736 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 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 23:16:21,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 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 23:16:21,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-17 23:16:21,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:21,792 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] [2022-01-17 23:16:21,793 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:21,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:21,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1402349347, now seen corresponding path program 1 times [2022-01-17 23:16:21,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:21,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288572790] [2022-01-17 23:16:21,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:21,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:22,157 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 23:16:22,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:22,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288572790] [2022-01-17 23:16:22,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288572790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:22,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:22,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:22,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249893363] [2022-01-17 23:16:22,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:22,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:22,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:22,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:22,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:22,198 INFO L87 Difference]: Start difference. First operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 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 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 23:16:22,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:22,601 INFO L93 Difference]: Finished difference Result 10840 states and 36777 transitions. [2022-01-17 23:16:22,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-17 23:16:22,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2022-01-17 23:16:22,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:22,659 INFO L225 Difference]: With dead ends: 10840 [2022-01-17 23:16:22,660 INFO L226 Difference]: Without dead ends: 7142 [2022-01-17 23:16:22,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:16:22,665 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 206 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:22,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 570 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:16:22,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7142 states. [2022-01-17 23:16:22,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7142 to 6162. [2022-01-17 23:16:22,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6162 states, 6161 states have (on average 3.3843531894173022) internal successors, (20851), 6161 states have internal predecessors, (20851), 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 23:16:23,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6162 states to 6162 states and 20851 transitions. [2022-01-17 23:16:23,013 INFO L78 Accepts]: Start accepts. Automaton has 6162 states and 20851 transitions. Word has length 55 [2022-01-17 23:16:23,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:23,015 INFO L470 AbstractCegarLoop]: Abstraction has 6162 states and 20851 transitions. [2022-01-17 23:16:23,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 23:16:23,015 INFO L276 IsEmpty]: Start isEmpty. Operand 6162 states and 20851 transitions. [2022-01-17 23:16:23,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-17 23:16:23,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:23,028 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] [2022-01-17 23:16:23,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:16:23,029 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:23,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:23,032 INFO L85 PathProgramCache]: Analyzing trace with hash -732121668, now seen corresponding path program 1 times [2022-01-17 23:16:23,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:23,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283712287] [2022-01-17 23:16:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:23,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:23,266 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 23:16:23,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:23,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283712287] [2022-01-17 23:16:23,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283712287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:23,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:23,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:23,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974379442] [2022-01-17 23:16:23,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:23,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:23,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:23,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:23,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:23,270 INFO L87 Difference]: Start difference. First operand 6162 states and 20851 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 23:16:23,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:23,485 INFO L93 Difference]: Finished difference Result 9077 states and 30228 transitions. [2022-01-17 23:16:23,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-17 23:16:23,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2022-01-17 23:16:23,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:23,521 INFO L225 Difference]: With dead ends: 9077 [2022-01-17 23:16:23,521 INFO L226 Difference]: Without dead ends: 7192 [2022-01-17 23:16:23,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:16:23,522 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 195 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:23,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 571 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:23,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7192 states. [2022-01-17 23:16:23,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7192 to 5952. [2022-01-17 23:16:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5952 states, 5951 states have (on average 3.3696857670979665) internal successors, (20053), 5951 states have internal predecessors, (20053), 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 23:16:23,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5952 states to 5952 states and 20053 transitions. [2022-01-17 23:16:23,779 INFO L78 Accepts]: Start accepts. Automaton has 5952 states and 20053 transitions. Word has length 57 [2022-01-17 23:16:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:23,779 INFO L470 AbstractCegarLoop]: Abstraction has 5952 states and 20053 transitions. [2022-01-17 23:16:23,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 23:16:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 5952 states and 20053 transitions. [2022-01-17 23:16:23,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-17 23:16:23,791 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:23,791 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] [2022-01-17 23:16:23,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:16:23,791 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:23,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:23,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1728665957, now seen corresponding path program 1 times [2022-01-17 23:16:23,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:23,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623359204] [2022-01-17 23:16:23,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:23,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:23,905 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 23:16:23,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:23,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623359204] [2022-01-17 23:16:23,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623359204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:23,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:23,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:23,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351615499] [2022-01-17 23:16:23,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:23,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:23,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:23,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:23,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:23,907 INFO L87 Difference]: Start difference. First operand 5952 states and 20053 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 23:16:24,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:24,041 INFO L93 Difference]: Finished difference Result 8062 states and 26912 transitions. [2022-01-17 23:16:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-17 23:16:24,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2022-01-17 23:16:24,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:24,054 INFO L225 Difference]: With dead ends: 8062 [2022-01-17 23:16:24,054 INFO L226 Difference]: Without dead ends: 3937 [2022-01-17 23:16:24,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-01-17 23:16:24,055 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 185 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:24,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 490 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:24,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2022-01-17 23:16:24,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3937. [2022-01-17 23:16:24,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3937 states, 3936 states have (on average 3.2347560975609757) internal successors, (12732), 3936 states have internal predecessors, (12732), 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 23:16:24,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3937 states to 3937 states and 12732 transitions. [2022-01-17 23:16:24,208 INFO L78 Accepts]: Start accepts. Automaton has 3937 states and 12732 transitions. Word has length 59 [2022-01-17 23:16:24,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:24,208 INFO L470 AbstractCegarLoop]: Abstraction has 3937 states and 12732 transitions. [2022-01-17 23:16:24,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 23:16:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3937 states and 12732 transitions. [2022-01-17 23:16:24,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-17 23:16:24,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:24,218 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 23:16:24,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:16:24,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:24,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:24,219 INFO L85 PathProgramCache]: Analyzing trace with hash -724988951, now seen corresponding path program 1 times [2022-01-17 23:16:24,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:24,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734682375] [2022-01-17 23:16:24,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:24,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:24,327 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 23:16:24,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:24,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734682375] [2022-01-17 23:16:24,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734682375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:24,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:24,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:16:24,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664182855] [2022-01-17 23:16:24,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:24,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:16:24,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:24,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:16:24,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:16:24,329 INFO L87 Difference]: Start difference. First operand 3937 states and 12732 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 23:16:24,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:24,419 INFO L93 Difference]: Finished difference Result 4864 states and 15538 transitions. [2022-01-17 23:16:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:16:24,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 23:16:24,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:24,433 INFO L225 Difference]: With dead ends: 4864 [2022-01-17 23:16:24,435 INFO L226 Difference]: Without dead ends: 3594 [2022-01-17 23:16:24,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:24,442 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 142 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:24,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 354 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:24,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2022-01-17 23:16:24,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3594. [2022-01-17 23:16:24,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3594 states, 3593 states have (on average 3.187030336765934) internal successors, (11451), 3593 states have internal predecessors, (11451), 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 23:16:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 11451 transitions. [2022-01-17 23:16:24,517 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 11451 transitions. Word has length 60 [2022-01-17 23:16:24,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:24,517 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 11451 transitions. [2022-01-17 23:16:24,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 23:16:24,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 11451 transitions. [2022-01-17 23:16:24,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-17 23:16:24,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:24,524 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] [2022-01-17 23:16:24,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-17 23:16:24,524 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:24,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:24,525 INFO L85 PathProgramCache]: Analyzing trace with hash 355246970, now seen corresponding path program 1 times [2022-01-17 23:16:24,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:24,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802257707] [2022-01-17 23:16:24,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:24,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:24,594 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 23:16:24,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:24,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802257707] [2022-01-17 23:16:24,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802257707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:24,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:24,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:24,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736182547] [2022-01-17 23:16:24,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:24,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:24,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:24,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:24,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:24,596 INFO L87 Difference]: Start difference. First operand 3594 states and 11451 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 23:16:24,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:24,733 INFO L93 Difference]: Finished difference Result 3693 states and 11442 transitions. [2022-01-17 23:16:24,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-17 23:16:24,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-01-17 23:16:24,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:24,739 INFO L225 Difference]: With dead ends: 3693 [2022-01-17 23:16:24,739 INFO L226 Difference]: Without dead ends: 2628 [2022-01-17 23:16:24,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-17 23:16:24,740 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 223 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:24,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 412 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:24,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2022-01-17 23:16:24,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2628. [2022-01-17 23:16:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2628 states, 2627 states have (on average 3.050628092881614) internal successors, (8014), 2627 states have internal predecessors, (8014), 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 23:16:24,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 8014 transitions. [2022-01-17 23:16:24,783 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 8014 transitions. Word has length 61 [2022-01-17 23:16:24,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:24,783 INFO L470 AbstractCegarLoop]: Abstraction has 2628 states and 8014 transitions. [2022-01-17 23:16:24,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 23:16:24,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 8014 transitions. [2022-01-17 23:16:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-17 23:16:24,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:24,788 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] [2022-01-17 23:16:24,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:16:24,788 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:24,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1381851845, now seen corresponding path program 1 times [2022-01-17 23:16:24,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:24,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622962218] [2022-01-17 23:16:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:24,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:24,865 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 23:16:24,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:24,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622962218] [2022-01-17 23:16:24,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622962218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:24,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:24,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:16:24,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117838476] [2022-01-17 23:16:24,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:24,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:16:24,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:24,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:16:24,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:16:24,867 INFO L87 Difference]: Start difference. First operand 2628 states and 8014 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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 23:16:24,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:24,965 INFO L93 Difference]: Finished difference Result 2142 states and 6340 transitions. [2022-01-17 23:16:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:16:24,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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 63 [2022-01-17 23:16:24,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:24,968 INFO L225 Difference]: With dead ends: 2142 [2022-01-17 23:16:24,968 INFO L226 Difference]: Without dead ends: 1413 [2022-01-17 23:16:24,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:16:24,969 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 235 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:24,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 421 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:24,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-01-17 23:16:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1365. [2022-01-17 23:16:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1364 states have (on average 2.8673020527859236) internal successors, (3911), 1364 states have internal predecessors, (3911), 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 23:16:25,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 3911 transitions. [2022-01-17 23:16:25,006 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 3911 transitions. Word has length 63 [2022-01-17 23:16:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:25,006 INFO L470 AbstractCegarLoop]: Abstraction has 1365 states and 3911 transitions. [2022-01-17 23:16:25,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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 23:16:25,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 3911 transitions. [2022-01-17 23:16:25,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-17 23:16:25,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:25,008 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] [2022-01-17 23:16:25,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-17 23:16:25,009 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:25,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:25,009 INFO L85 PathProgramCache]: Analyzing trace with hash 905035369, now seen corresponding path program 1 times [2022-01-17 23:16:25,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:25,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433886481] [2022-01-17 23:16:25,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:25,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:25,091 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 23:16:25,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:25,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433886481] [2022-01-17 23:16:25,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433886481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:25,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:25,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:25,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293924430] [2022-01-17 23:16:25,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:25,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:25,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:25,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:25,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:25,093 INFO L87 Difference]: Start difference. First operand 1365 states and 3911 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 23:16:25,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:25,158 INFO L93 Difference]: Finished difference Result 1619 states and 4632 transitions. [2022-01-17 23:16:25,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:16:25,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2022-01-17 23:16:25,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:25,158 INFO L225 Difference]: With dead ends: 1619 [2022-01-17 23:16:25,158 INFO L226 Difference]: Without dead ends: 0 [2022-01-17 23:16:25,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:25,159 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 121 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:25,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 483 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:25,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-17 23:16:25,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-17 23:16:25,160 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) [2022-01-17 23:16:25,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-17 23:16:25,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-01-17 23:16:25,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:25,160 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-17 23:16:25,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 23:16:25,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-17 23:16:25,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-17 23:16:25,162 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-17 23:16:25,162 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-17 23:16:25,162 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-17 23:16:25,162 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-17 23:16:25,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-17 23:16:25,164 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:25,166 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:16:25,166 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:16:25,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:16:25 BasicIcfg [2022-01-17 23:16:25,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:16:25,168 INFO L158 Benchmark]: Toolchain (without parser) took 4475.90ms. Allocated memory was 341.8MB in the beginning and 901.8MB in the end (delta: 559.9MB). Free memory was 290.7MB in the beginning and 622.1MB in the end (delta: -331.4MB). Peak memory consumption was 231.6MB. Max. memory is 16.0GB. [2022-01-17 23:16:25,168 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 341.8MB. Free memory is still 308.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:16:25,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.59ms. Allocated memory is still 341.8MB. Free memory was 290.4MB in the beginning and 305.6MB in the end (delta: -15.1MB). Peak memory consumption was 9.2MB. Max. memory is 16.0GB. [2022-01-17 23:16:25,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.34ms. Allocated memory is still 341.8MB. Free memory was 305.6MB in the beginning and 303.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:16:25,169 INFO L158 Benchmark]: Boogie Preprocessor took 21.05ms. Allocated memory is still 341.8MB. Free memory was 303.5MB in the beginning and 302.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:16:25,169 INFO L158 Benchmark]: RCFGBuilder took 276.36ms. Allocated memory is still 341.8MB. Free memory was 302.4MB in the beginning and 287.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-17 23:16:25,169 INFO L158 Benchmark]: TraceAbstraction took 3724.98ms. Allocated memory was 341.8MB in the beginning and 901.8MB in the end (delta: 559.9MB). Free memory was 287.7MB in the beginning and 622.1MB in the end (delta: -334.4MB). Peak memory consumption was 228.7MB. Max. memory is 16.0GB. [2022-01-17 23:16:25,170 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 341.8MB. Free memory is still 308.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 407.59ms. Allocated memory is still 341.8MB. Free memory was 290.4MB in the beginning and 305.6MB in the end (delta: -15.1MB). Peak memory consumption was 9.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.34ms. Allocated memory is still 341.8MB. Free memory was 305.6MB in the beginning and 303.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 21.05ms. Allocated memory is still 341.8MB. Free memory was 303.5MB in the beginning and 302.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 276.36ms. Allocated memory is still 341.8MB. Free memory was 302.4MB in the beginning and 287.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3724.98ms. Allocated memory was 341.8MB in the beginning and 901.8MB in the end (delta: 559.9MB). Free memory was 287.7MB in the beginning and 622.1MB in the end (delta: -334.4MB). Peak memory consumption was 228.7MB. 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: 18]: 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, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1307 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1307 mSDsluCounter, 3301 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2608 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 400 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 770 mSDtfsCounter, 400 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6591occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 2268 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 1689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2022-01-17 23:16:25,201 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...