./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:11:19,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:11:19,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:11:19,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:11:19,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:11:19,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:11:19,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:11:19,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:11:19,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:11:19,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:11:19,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:11:19,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:11:19,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:11:19,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:11:19,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:11:19,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:11:19,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:11:19,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:11:19,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:11:19,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:11:19,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:11:19,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:11:19,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:11:19,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:11:19,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:11:19,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:11:19,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:11:19,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:11:19,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:11:19,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:11:19,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:11:19,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:11:19,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:11:19,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:11:19,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:11:19,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:11:19,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:11:19,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:11:19,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:11:19,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:11:19,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:11:19,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 15:11:19,130 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:11:19,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:11:19,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:11:19,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:11:19,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:11:19,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:11:19,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:11:19,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:11:19,134 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:11:19,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:11:19,136 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 15:11:19,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:11:19,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 15:11:19,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:11:19,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:11:19,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:11:19,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:11:19,137 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 15:11:19,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:11:19,138 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:11:19,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:11:19,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:11:19,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:11:19,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:11:19,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:11:19,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:11:19,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:11:19,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:11:19,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:11:19,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:11:19,140 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:11:19,140 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:11:19,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:11:19,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:11:19,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 [2021-12-21 15:11:19,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:11:19,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:11:19,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:11:19,394 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:11:19,395 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:11:19,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2021-12-21 15:11:19,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/735ee764d/a13484502f5c46989f9d5d1a4a439f58/FLAG2d6448c7b [2021-12-21 15:11:19,973 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:11:19,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2021-12-21 15:11:19,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/735ee764d/a13484502f5c46989f9d5d1a4a439f58/FLAG2d6448c7b [2021-12-21 15:11:20,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/735ee764d/a13484502f5c46989f9d5d1a4a439f58 [2021-12-21 15:11:20,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:11:20,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:11:20,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:11:20,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:11:20,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:11:20,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:20,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ba85aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20, skipping insertion in model container [2021-12-21 15:11:20,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:20,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:11:20,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:11:20,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2021-12-21 15:11:20,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:11:20,863 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:11:20,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2021-12-21 15:11:20,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:11:20,949 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:11:20,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20 WrapperNode [2021-12-21 15:11:20,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:11:20,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:11:20,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:11:20,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:11:20,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:20,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:20,997 INFO L137 Inliner]: procedures = 172, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 106 [2021-12-21 15:11:20,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:11:20,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:11:20,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:11:20,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:11:21,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:21,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:21,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:21,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:21,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:21,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:21,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:21,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:11:21,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:11:21,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:11:21,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:11:21,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (1/1) ... [2021-12-21 15:11:21,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:11:21,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:11:21,056 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) [2021-12-21 15:11:21,069 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 [2021-12-21 15:11:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 15:11:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:11:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-21 15:11:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:11:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:11:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-21 15:11:21,094 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-21 15:11:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:11:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:11:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:11:21,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:11:21,096 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-21 15:11:21,180 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:11:21,182 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:11:21,387 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:11:21,394 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:11:21,395 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-12-21 15:11:21,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:11:21 BoogieIcfgContainer [2021-12-21 15:11:21,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:11:21,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:11:21,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:11:21,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:11:21,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:11:20" (1/3) ... [2021-12-21 15:11:21,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40cb6480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:11:21, skipping insertion in model container [2021-12-21 15:11:21,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:11:20" (2/3) ... [2021-12-21 15:11:21,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40cb6480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:11:21, skipping insertion in model container [2021-12-21 15:11:21,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:11:21" (3/3) ... [2021-12-21 15:11:21,405 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_05-lockfuns_racefree.i [2021-12-21 15:11:21,409 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-21 15:11:21,409 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:11:21,410 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 15:11:21,410 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-21 15:11:21,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:21,467 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-21 15:11:21,522 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:11:21,533 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=PETRI_NET, 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 [2021-12-21 15:11:21,534 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-21 15:11:21,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 115 transitions, 238 flow [2021-12-21 15:11:21,627 INFO L129 PetriNetUnfolder]: 17/156 cut-off events. [2021-12-21 15:11:21,627 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-21 15:11:21,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 156 events. 17/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 385 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 79. Up to 4 conditions per place. [2021-12-21 15:11:21,661 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 115 transitions, 238 flow [2021-12-21 15:11:21,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 110 transitions, 225 flow [2021-12-21 15:11:21,699 INFO L129 PetriNetUnfolder]: 4/86 cut-off events. [2021-12-21 15:11:21,699 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 15:11:21,700 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:21,700 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:21,701 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:21,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:21,708 INFO L85 PathProgramCache]: Analyzing trace with hash 438148196, now seen corresponding path program 1 times [2021-12-21 15:11:21,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:21,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898617567] [2021-12-21 15:11:21,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:21,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:21,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:21,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898617567] [2021-12-21 15:11:21,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898617567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:11:21,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:11:21,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 15:11:21,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123458774] [2021-12-21 15:11:21,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:11:21,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:11:21,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:22,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:11:22,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:11:22,011 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 115 [2021-12-21 15:11:22,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 110 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-12-21 15:11:22,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:22,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 115 [2021-12-21 15:11:22,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:22,062 INFO L129 PetriNetUnfolder]: 0/102 cut-off events. [2021-12-21 15:11:22,063 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 15:11:22,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 102 events. 0/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 88 event pairs, 0 based on Foata normal form. 18/117 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-12-21 15:11:22,066 INFO L132 encePairwiseOnDemand]: 101/115 looper letters, 8 selfloop transitions, 2 changer transitions 17/100 dead transitions. [2021-12-21 15:11:22,066 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 100 transitions, 225 flow [2021-12-21 15:11:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:11:22,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 15:11:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2021-12-21 15:11:22,091 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9014492753623189 [2021-12-21 15:11:22,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2021-12-21 15:11:22,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2021-12-21 15:11:22,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:22,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2021-12-21 15:11:22,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2021-12-21 15:11:22,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2021-12-21 15:11:22,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2021-12-21 15:11:22,116 INFO L186 Difference]: Start difference. First operand has 102 places, 110 transitions, 225 flow. Second operand 3 states and 311 transitions. [2021-12-21 15:11:22,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 100 transitions, 225 flow [2021-12-21 15:11:22,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 100 transitions, 225 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:11:22,128 INFO L242 Difference]: Finished difference. Result has 104 places, 81 transitions, 175 flow [2021-12-21 15:11:22,130 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=104, PETRI_TRANSITIONS=81} [2021-12-21 15:11:22,134 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2021-12-21 15:11:22,134 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 81 transitions, 175 flow [2021-12-21 15:11:22,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-12-21 15:11:22,135 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:22,136 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:11:22,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 15:11:22,136 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:22,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1685952027, now seen corresponding path program 1 times [2021-12-21 15:11:22,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:22,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735083905] [2021-12-21 15:11:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:22,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:11:22,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 15:11:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:11:22,249 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 15:11:22,250 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 15:11:22,251 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-12-21 15:11:22,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-21 15:11:22,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 15:11:22,257 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 15:11:22,258 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-21 15:11:22,259 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-12-21 15:11:22,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:22,316 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-21 15:11:22,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:11:22,329 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=PETRI_NET, 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 [2021-12-21 15:11:22,329 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-21 15:11:22,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 150 transitions, 318 flow [2021-12-21 15:11:22,392 INFO L129 PetriNetUnfolder]: 31/257 cut-off events. [2021-12-21 15:11:22,392 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-12-21 15:11:22,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 257 events. 31/257 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 809 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 158. Up to 8 conditions per place. [2021-12-21 15:11:22,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 150 transitions, 318 flow [2021-12-21 15:11:22,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 150 transitions, 318 flow [2021-12-21 15:11:22,415 INFO L129 PetriNetUnfolder]: 6/94 cut-off events. [2021-12-21 15:11:22,415 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-21 15:11:22,415 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:22,415 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:22,416 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:22,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:22,416 INFO L85 PathProgramCache]: Analyzing trace with hash -390354118, now seen corresponding path program 1 times [2021-12-21 15:11:22,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:22,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770117073] [2021-12-21 15:11:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:22,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:22,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:22,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770117073] [2021-12-21 15:11:22,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770117073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:11:22,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:11:22,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 15:11:22,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446726825] [2021-12-21 15:11:22,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:11:22,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:11:22,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:22,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:11:22,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:11:22,496 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 150 [2021-12-21 15:11:22,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 150 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2021-12-21 15:11:22,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:22,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 150 [2021-12-21 15:11:22,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:22,563 INFO L129 PetriNetUnfolder]: 2/204 cut-off events. [2021-12-21 15:11:22,563 INFO L130 PetriNetUnfolder]: For 20/31 co-relation queries the response was YES. [2021-12-21 15:11:22,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 204 events. 2/204 cut-off events. For 20/31 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 468 event pairs, 0 based on Foata normal form. 65/261 useless extension candidates. Maximal degree in co-relation 132. Up to 16 conditions per place. [2021-12-21 15:11:22,565 INFO L132 encePairwiseOnDemand]: 130/150 looper letters, 11 selfloop transitions, 2 changer transitions 23/136 dead transitions. [2021-12-21 15:11:22,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 136 transitions, 320 flow [2021-12-21 15:11:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:11:22,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 15:11:22,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2021-12-21 15:11:22,570 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8955555555555555 [2021-12-21 15:11:22,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2021-12-21 15:11:22,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2021-12-21 15:11:22,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:22,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2021-12-21 15:11:22,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2021-12-21 15:11:22,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2021-12-21 15:11:22,575 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2021-12-21 15:11:22,576 INFO L186 Difference]: Start difference. First operand has 136 places, 150 transitions, 318 flow. Second operand 3 states and 403 transitions. [2021-12-21 15:11:22,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 136 transitions, 320 flow [2021-12-21 15:11:22,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 136 transitions, 320 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:11:22,581 INFO L242 Difference]: Finished difference. Result has 138 places, 110 transitions, 242 flow [2021-12-21 15:11:22,582 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=138, PETRI_TRANSITIONS=110} [2021-12-21 15:11:22,583 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 2 predicate places. [2021-12-21 15:11:22,583 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 110 transitions, 242 flow [2021-12-21 15:11:22,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2021-12-21 15:11:22,584 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:22,584 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:22,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 15:11:22,585 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:22,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:22,585 INFO L85 PathProgramCache]: Analyzing trace with hash -993521947, now seen corresponding path program 1 times [2021-12-21 15:11:22,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:22,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564365795] [2021-12-21 15:11:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:22,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:22,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:22,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564365795] [2021-12-21 15:11:22,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564365795] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:11:22,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997100275] [2021-12-21 15:11:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:22,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:11:22,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:11:22,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:11:22,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 15:11:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:22,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 15:11:22,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:11:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:22,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:11:23,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:23,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997100275] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:11:23,036 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 15:11:23,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-21 15:11:23,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367352722] [2021-12-21 15:11:23,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 15:11:23,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-21 15:11:23,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:23,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 15:11:23,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-21 15:11:23,040 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 150 [2021-12-21 15:11:23,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 110 transitions, 242 flow. Second operand has 10 states, 10 states have (on average 122.3) internal successors, (1223), 10 states have internal predecessors, (1223), 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) [2021-12-21 15:11:23,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:23,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 150 [2021-12-21 15:11:23,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:23,110 INFO L129 PetriNetUnfolder]: 0/108 cut-off events. [2021-12-21 15:11:23,111 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-21 15:11:23,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 108 events. 0/108 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-12-21 15:11:23,111 INFO L132 encePairwiseOnDemand]: 145/150 looper letters, 9 selfloop transitions, 7 changer transitions 0/102 dead transitions. [2021-12-21 15:11:23,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 102 transitions, 256 flow [2021-12-21 15:11:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:11:23,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:11:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1098 transitions. [2021-12-21 15:11:23,115 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8133333333333334 [2021-12-21 15:11:23,115 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1098 transitions. [2021-12-21 15:11:23,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1098 transitions. [2021-12-21 15:11:23,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:23,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1098 transitions. [2021-12-21 15:11:23,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 122.0) internal successors, (1098), 9 states have internal predecessors, (1098), 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) [2021-12-21 15:11:23,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 150.0) internal successors, (1500), 10 states have internal predecessors, (1500), 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) [2021-12-21 15:11:23,122 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 150.0) internal successors, (1500), 10 states have internal predecessors, (1500), 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) [2021-12-21 15:11:23,122 INFO L186 Difference]: Start difference. First operand has 138 places, 110 transitions, 242 flow. Second operand 9 states and 1098 transitions. [2021-12-21 15:11:23,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 102 transitions, 256 flow [2021-12-21 15:11:23,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 102 transitions, 252 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-12-21 15:11:23,126 INFO L242 Difference]: Finished difference. Result has 110 places, 98 transitions, 226 flow [2021-12-21 15:11:23,126 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=226, PETRI_PLACES=110, PETRI_TRANSITIONS=98} [2021-12-21 15:11:23,126 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, -26 predicate places. [2021-12-21 15:11:23,127 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 98 transitions, 226 flow [2021-12-21 15:11:23,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 122.3) internal successors, (1223), 10 states have internal predecessors, (1223), 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) [2021-12-21 15:11:23,128 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:23,128 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:11:23,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 15:11:23,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:11:23,340 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:23,340 INFO L85 PathProgramCache]: Analyzing trace with hash 210109917, now seen corresponding path program 1 times [2021-12-21 15:11:23,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:23,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383944831] [2021-12-21 15:11:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:23,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:11:23,369 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 15:11:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:11:23,390 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 15:11:23,390 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 15:11:23,390 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-12-21 15:11:23,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-21 15:11:23,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 15:11:23,392 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-21 15:11:23,392 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-21 15:11:23,392 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-12-21 15:11:23,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,410 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,410 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,413 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,413 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,413 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,413 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,414 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,414 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,414 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,414 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,414 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,415 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,415 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,415 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,415 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,415 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,416 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,416 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,416 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,416 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,416 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,422 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:23,447 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-12-21 15:11:23,448 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:11:23,449 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=PETRI_NET, 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 [2021-12-21 15:11:23,449 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-21 15:11:23,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 185 transitions, 400 flow [2021-12-21 15:11:23,502 INFO L129 PetriNetUnfolder]: 50/391 cut-off events. [2021-12-21 15:11:23,502 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-12-21 15:11:23,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 391 events. 50/391 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1391 event pairs, 1 based on Foata normal form. 0/333 useless extension candidates. Maximal degree in co-relation 265. Up to 16 conditions per place. [2021-12-21 15:11:23,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 166 places, 185 transitions, 400 flow [2021-12-21 15:11:23,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 185 transitions, 400 flow [2021-12-21 15:11:23,521 INFO L129 PetriNetUnfolder]: 6/92 cut-off events. [2021-12-21 15:11:23,522 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 15:11:23,522 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:23,522 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:23,523 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:23,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:23,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1164806739, now seen corresponding path program 1 times [2021-12-21 15:11:23,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:23,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122604832] [2021-12-21 15:11:23,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:23,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:23,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:23,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122604832] [2021-12-21 15:11:23,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122604832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:11:23,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:11:23,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 15:11:23,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972366968] [2021-12-21 15:11:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:11:23,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:11:23,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:23,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:11:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:11:23,553 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 185 [2021-12-21 15:11:23,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 185 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2021-12-21 15:11:23,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:23,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 185 [2021-12-21 15:11:23,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:23,626 INFO L129 PetriNetUnfolder]: 7/323 cut-off events. [2021-12-21 15:11:23,626 INFO L130 PetriNetUnfolder]: For 49/91 co-relation queries the response was YES. [2021-12-21 15:11:23,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 323 events. 7/323 cut-off events. For 49/91 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1018 event pairs, 1 based on Foata normal form. 174/483 useless extension candidates. Maximal degree in co-relation 237. Up to 30 conditions per place. [2021-12-21 15:11:23,629 INFO L132 encePairwiseOnDemand]: 159/185 looper letters, 12 selfloop transitions, 2 changer transitions 24/165 dead transitions. [2021-12-21 15:11:23,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 165 transitions, 394 flow [2021-12-21 15:11:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:11:23,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 15:11:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 492 transitions. [2021-12-21 15:11:23,632 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8864864864864865 [2021-12-21 15:11:23,632 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 492 transitions. [2021-12-21 15:11:23,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 492 transitions. [2021-12-21 15:11:23,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:23,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 492 transitions. [2021-12-21 15:11:23,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 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) [2021-12-21 15:11:23,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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) [2021-12-21 15:11:23,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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) [2021-12-21 15:11:23,636 INFO L186 Difference]: Start difference. First operand has 166 places, 185 transitions, 400 flow. Second operand 3 states and 492 transitions. [2021-12-21 15:11:23,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 165 transitions, 394 flow [2021-12-21 15:11:23,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 165 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:11:23,641 INFO L242 Difference]: Finished difference. Result has 168 places, 138 transitions, 307 flow [2021-12-21 15:11:23,641 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=168, PETRI_TRANSITIONS=138} [2021-12-21 15:11:23,644 INFO L334 CegarLoopForPetriNet]: 166 programPoint places, 2 predicate places. [2021-12-21 15:11:23,645 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 138 transitions, 307 flow [2021-12-21 15:11:23,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2021-12-21 15:11:23,645 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:23,646 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:23,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 15:11:23,646 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:23,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:23,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1762072419, now seen corresponding path program 1 times [2021-12-21 15:11:23,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:23,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741671657] [2021-12-21 15:11:23,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:23,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:23,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:23,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741671657] [2021-12-21 15:11:23,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741671657] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:11:23,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069875172] [2021-12-21 15:11:23,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:23,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:11:23,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:11:23,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:11:23,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 15:11:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:23,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 15:11:23,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:11:23,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:23,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:11:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:24,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069875172] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:11:24,016 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 15:11:24,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-21 15:11:24,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496149698] [2021-12-21 15:11:24,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 15:11:24,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-21 15:11:24,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:24,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 15:11:24,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-21 15:11:24,020 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 185 [2021-12-21 15:11:24,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 138 transitions, 307 flow. Second operand has 10 states, 10 states have (on average 149.3) internal successors, (1493), 10 states have internal predecessors, (1493), 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) [2021-12-21 15:11:24,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:24,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 185 [2021-12-21 15:11:24,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:24,101 INFO L129 PetriNetUnfolder]: 0/159 cut-off events. [2021-12-21 15:11:24,101 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-12-21 15:11:24,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 159 events. 0/159 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 260 event pairs, 0 based on Foata normal form. 2/161 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-12-21 15:11:24,102 INFO L132 encePairwiseOnDemand]: 179/185 looper letters, 13 selfloop transitions, 9 changer transitions 0/148 dead transitions. [2021-12-21 15:11:24,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 148 transitions, 373 flow [2021-12-21 15:11:24,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:11:24,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:11:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1347 transitions. [2021-12-21 15:11:24,106 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.809009009009009 [2021-12-21 15:11:24,106 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1347 transitions. [2021-12-21 15:11:24,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1347 transitions. [2021-12-21 15:11:24,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:24,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1347 transitions. [2021-12-21 15:11:24,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 149.66666666666666) internal successors, (1347), 9 states have internal predecessors, (1347), 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) [2021-12-21 15:11:24,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 185.0) internal successors, (1850), 10 states have internal predecessors, (1850), 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) [2021-12-21 15:11:24,113 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 185.0) internal successors, (1850), 10 states have internal predecessors, (1850), 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) [2021-12-21 15:11:24,114 INFO L186 Difference]: Start difference. First operand has 168 places, 138 transitions, 307 flow. Second operand 9 states and 1347 transitions. [2021-12-21 15:11:24,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 148 transitions, 373 flow [2021-12-21 15:11:24,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 148 transitions, 365 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-12-21 15:11:24,117 INFO L242 Difference]: Finished difference. Result has 157 places, 144 transitions, 349 flow [2021-12-21 15:11:24,118 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=349, PETRI_PLACES=157, PETRI_TRANSITIONS=144} [2021-12-21 15:11:24,118 INFO L334 CegarLoopForPetriNet]: 166 programPoint places, -9 predicate places. [2021-12-21 15:11:24,119 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 144 transitions, 349 flow [2021-12-21 15:11:24,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.3) internal successors, (1493), 10 states have internal predecessors, (1493), 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) [2021-12-21 15:11:24,120 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:24,120 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:11:24,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 15:11:24,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-21 15:11:24,339 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:24,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:24,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1592736104, now seen corresponding path program 1 times [2021-12-21 15:11:24,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:24,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255626347] [2021-12-21 15:11:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:24,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:11:24,364 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 15:11:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:11:24,390 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 15:11:24,390 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 15:11:24,390 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-12-21 15:11:24,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-21 15:11:24,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 15:11:24,391 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-21 15:11:24,391 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-21 15:11:24,391 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-12-21 15:11:24,405 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,405 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,405 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,405 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,405 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,405 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,406 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,406 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,406 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,406 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,406 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,406 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,406 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,422 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,422 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,422 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,422 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,422 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,422 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,427 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:24,449 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-12-21 15:11:24,450 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:11:24,451 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=PETRI_NET, 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 [2021-12-21 15:11:24,451 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-21 15:11:24,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 220 transitions, 484 flow [2021-12-21 15:11:24,537 INFO L129 PetriNetUnfolder]: 81/593 cut-off events. [2021-12-21 15:11:24,537 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-12-21 15:11:24,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 593 events. 81/593 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2389 event pairs, 6 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 411. Up to 32 conditions per place. [2021-12-21 15:11:24,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 220 transitions, 484 flow [2021-12-21 15:11:24,554 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 220 transitions, 484 flow [2021-12-21 15:11:24,560 INFO L129 PetriNetUnfolder]: 6/94 cut-off events. [2021-12-21 15:11:24,560 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-21 15:11:24,560 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:24,560 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:24,560 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:24,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:24,561 INFO L85 PathProgramCache]: Analyzing trace with hash 808663471, now seen corresponding path program 1 times [2021-12-21 15:11:24,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:24,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604716239] [2021-12-21 15:11:24,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:24,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:24,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:24,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:24,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604716239] [2021-12-21 15:11:24,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604716239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:11:24,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:11:24,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 15:11:24,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931533161] [2021-12-21 15:11:24,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:11:24,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:11:24,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:24,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:11:24,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:11:24,597 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 220 [2021-12-21 15:11:24,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 220 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2021-12-21 15:11:24,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:24,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 220 [2021-12-21 15:11:24,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:24,710 INFO L129 PetriNetUnfolder]: 20/506 cut-off events. [2021-12-21 15:11:24,710 INFO L130 PetriNetUnfolder]: For 112/167 co-relation queries the response was YES. [2021-12-21 15:11:24,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 506 events. 20/506 cut-off events. For 112/167 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2049 event pairs, 6 based on Foata normal form. 396/878 useless extension candidates. Maximal degree in co-relation 384. Up to 56 conditions per place. [2021-12-21 15:11:24,715 INFO L132 encePairwiseOnDemand]: 188/220 looper letters, 13 selfloop transitions, 2 changer transitions 25/194 dead transitions. [2021-12-21 15:11:24,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 194 transitions, 470 flow [2021-12-21 15:11:24,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:11:24,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 15:11:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2021-12-21 15:11:24,717 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8803030303030303 [2021-12-21 15:11:24,717 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2021-12-21 15:11:24,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2021-12-21 15:11:24,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:24,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2021-12-21 15:11:24,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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) [2021-12-21 15:11:24,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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) [2021-12-21 15:11:24,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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) [2021-12-21 15:11:24,721 INFO L186 Difference]: Start difference. First operand has 196 places, 220 transitions, 484 flow. Second operand 3 states and 581 transitions. [2021-12-21 15:11:24,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 194 transitions, 470 flow [2021-12-21 15:11:24,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 194 transitions, 470 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:11:24,725 INFO L242 Difference]: Finished difference. Result has 198 places, 166 transitions, 374 flow [2021-12-21 15:11:24,725 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=198, PETRI_TRANSITIONS=166} [2021-12-21 15:11:24,727 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 2 predicate places. [2021-12-21 15:11:24,727 INFO L470 AbstractCegarLoop]: Abstraction has has 198 places, 166 transitions, 374 flow [2021-12-21 15:11:24,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2021-12-21 15:11:24,728 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:24,728 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:24,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 15:11:24,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:24,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash -587956040, now seen corresponding path program 1 times [2021-12-21 15:11:24,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:24,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014340142] [2021-12-21 15:11:24,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:24,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:24,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:24,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014340142] [2021-12-21 15:11:24,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014340142] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:11:24,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939826417] [2021-12-21 15:11:24,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:24,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:11:24,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:11:24,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:11:24,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 15:11:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:24,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 15:11:24,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:11:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:24,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:11:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:25,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939826417] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:11:25,084 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 15:11:25,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-21 15:11:25,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462038608] [2021-12-21 15:11:25,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 15:11:25,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-21 15:11:25,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:25,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 15:11:25,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-21 15:11:25,089 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 220 [2021-12-21 15:11:25,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 166 transitions, 374 flow. Second operand has 10 states, 10 states have (on average 176.3) internal successors, (1763), 10 states have internal predecessors, (1763), 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) [2021-12-21 15:11:25,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:25,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 220 [2021-12-21 15:11:25,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:25,196 INFO L129 PetriNetUnfolder]: 0/210 cut-off events. [2021-12-21 15:11:25,197 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-12-21 15:11:25,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 210 events. 0/210 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 459 event pairs, 0 based on Foata normal form. 2/212 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-12-21 15:11:25,197 INFO L132 encePairwiseOnDemand]: 214/220 looper letters, 14 selfloop transitions, 9 changer transitions 0/176 dead transitions. [2021-12-21 15:11:25,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 176 transitions, 442 flow [2021-12-21 15:11:25,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:11:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:11:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1591 transitions. [2021-12-21 15:11:25,202 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8035353535353535 [2021-12-21 15:11:25,202 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1591 transitions. [2021-12-21 15:11:25,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1591 transitions. [2021-12-21 15:11:25,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:25,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1591 transitions. [2021-12-21 15:11:25,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 176.77777777777777) internal successors, (1591), 9 states have internal predecessors, (1591), 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) [2021-12-21 15:11:25,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 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) [2021-12-21 15:11:25,210 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 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) [2021-12-21 15:11:25,210 INFO L186 Difference]: Start difference. First operand has 198 places, 166 transitions, 374 flow. Second operand 9 states and 1591 transitions. [2021-12-21 15:11:25,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 176 transitions, 442 flow [2021-12-21 15:11:25,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 176 transitions, 428 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-12-21 15:11:25,215 INFO L242 Difference]: Finished difference. Result has 187 places, 172 transitions, 410 flow [2021-12-21 15:11:25,215 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=410, PETRI_PLACES=187, PETRI_TRANSITIONS=172} [2021-12-21 15:11:25,216 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, -9 predicate places. [2021-12-21 15:11:25,216 INFO L470 AbstractCegarLoop]: Abstraction has has 187 places, 172 transitions, 410 flow [2021-12-21 15:11:25,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 176.3) internal successors, (1763), 10 states have internal predecessors, (1763), 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) [2021-12-21 15:11:25,218 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:25,218 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:11:25,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 15:11:25,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:11:25,432 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:25,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:25,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1706824039, now seen corresponding path program 1 times [2021-12-21 15:11:25,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:25,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920738140] [2021-12-21 15:11:25,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:25,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-21 15:11:25,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:25,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920738140] [2021-12-21 15:11:25,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920738140] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:11:25,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:11:25,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 15:11:25,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603500863] [2021-12-21 15:11:25,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:11:25,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 15:11:25,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:25,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 15:11:25,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 15:11:25,511 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 220 [2021-12-21 15:11:25,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 172 transitions, 410 flow. Second operand has 5 states, 5 states have (on average 161.6) internal successors, (808), 5 states have internal predecessors, (808), 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) [2021-12-21 15:11:25,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:25,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 220 [2021-12-21 15:11:25,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:31,374 INFO L129 PetriNetUnfolder]: 16742/44787 cut-off events. [2021-12-21 15:11:31,374 INFO L130 PetriNetUnfolder]: For 475/475 co-relation queries the response was YES. [2021-12-21 15:11:31,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67977 conditions, 44787 events. 16742/44787 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 1798. Compared 565288 event pairs, 9176 based on Foata normal form. 750/44882 useless extension candidates. Maximal degree in co-relation 67864. Up to 14189 conditions per place. [2021-12-21 15:11:31,834 INFO L132 encePairwiseOnDemand]: 212/220 looper letters, 31 selfloop transitions, 5 changer transitions 53/236 dead transitions. [2021-12-21 15:11:31,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 236 transitions, 731 flow [2021-12-21 15:11:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 15:11:31,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-21 15:11:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1211 transitions. [2021-12-21 15:11:31,837 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7863636363636364 [2021-12-21 15:11:31,837 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1211 transitions. [2021-12-21 15:11:31,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1211 transitions. [2021-12-21 15:11:31,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:31,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1211 transitions. [2021-12-21 15:11:31,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 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) [2021-12-21 15:11:31,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 220.0) internal successors, (1760), 8 states have internal predecessors, (1760), 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) [2021-12-21 15:11:31,845 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 220.0) internal successors, (1760), 8 states have internal predecessors, (1760), 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) [2021-12-21 15:11:31,845 INFO L186 Difference]: Start difference. First operand has 187 places, 172 transitions, 410 flow. Second operand 7 states and 1211 transitions. [2021-12-21 15:11:31,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 236 transitions, 731 flow [2021-12-21 15:11:31,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 236 transitions, 725 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-12-21 15:11:31,852 INFO L242 Difference]: Finished difference. Result has 197 places, 176 transitions, 461 flow [2021-12-21 15:11:31,853 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=461, PETRI_PLACES=197, PETRI_TRANSITIONS=176} [2021-12-21 15:11:31,854 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 1 predicate places. [2021-12-21 15:11:31,854 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 176 transitions, 461 flow [2021-12-21 15:11:31,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 161.6) internal successors, (808), 5 states have internal predecessors, (808), 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) [2021-12-21 15:11:31,855 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:31,855 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:11:31,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 15:11:31,856 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:31,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:31,856 INFO L85 PathProgramCache]: Analyzing trace with hash 382849206, now seen corresponding path program 1 times [2021-12-21 15:11:31,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:31,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821526935] [2021-12-21 15:11:31,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:31,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:11:31,878 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 15:11:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:11:31,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 15:11:31,913 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 15:11:31,914 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-12-21 15:11:31,914 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-21 15:11:31,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 15:11:31,915 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-21 15:11:31,915 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-21 15:11:31,915 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-12-21 15:11:31,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:11:31,975 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-12-21 15:11:31,977 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:11:31,978 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=PETRI_NET, 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 [2021-12-21 15:11:31,978 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-21 15:11:31,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 226 places, 255 transitions, 570 flow [2021-12-21 15:11:32,107 INFO L129 PetriNetUnfolder]: 140/935 cut-off events. [2021-12-21 15:11:32,107 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2021-12-21 15:11:32,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1046 conditions, 935 events. 140/935 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4405 event pairs, 23 based on Foata normal form. 0/805 useless extension candidates. Maximal degree in co-relation 638. Up to 80 conditions per place. [2021-12-21 15:11:32,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 255 transitions, 570 flow [2021-12-21 15:11:32,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 255 transitions, 570 flow [2021-12-21 15:11:32,139 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2021-12-21 15:11:32,139 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 15:11:32,140 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:32,140 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:32,140 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:32,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:32,141 INFO L85 PathProgramCache]: Analyzing trace with hash -953225297, now seen corresponding path program 1 times [2021-12-21 15:11:32,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:32,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005251428] [2021-12-21 15:11:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:32,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:32,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:32,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005251428] [2021-12-21 15:11:32,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005251428] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:11:32,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:11:32,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 15:11:32,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93257002] [2021-12-21 15:11:32,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:11:32,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 15:11:32,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:32,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 15:11:32,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 15:11:32,160 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 255 [2021-12-21 15:11:32,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 255 transitions, 570 flow. Second operand has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 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) [2021-12-21 15:11:32,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:32,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 255 [2021-12-21 15:11:32,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:32,302 INFO L129 PetriNetUnfolder]: 54/843 cut-off events. [2021-12-21 15:11:32,303 INFO L130 PetriNetUnfolder]: For 290/314 co-relation queries the response was YES. [2021-12-21 15:11:32,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 843 events. 54/843 cut-off events. For 290/314 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4043 event pairs, 23 based on Foata normal form. 574/1373 useless extension candidates. Maximal degree in co-relation 609. Up to 86 conditions per place. [2021-12-21 15:11:32,314 INFO L132 encePairwiseOnDemand]: 220/255 looper letters, 5 selfloop transitions, 0 changer transitions 26/219 dead transitions. [2021-12-21 15:11:32,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 219 transitions, 518 flow [2021-12-21 15:11:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 15:11:32,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-21 15:11:32,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 463 transitions. [2021-12-21 15:11:32,317 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.907843137254902 [2021-12-21 15:11:32,317 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 463 transitions. [2021-12-21 15:11:32,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 463 transitions. [2021-12-21 15:11:32,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:32,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 463 transitions. [2021-12-21 15:11:32,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 231.5) internal successors, (463), 2 states have internal predecessors, (463), 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) [2021-12-21 15:11:32,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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) [2021-12-21 15:11:32,320 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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) [2021-12-21 15:11:32,320 INFO L186 Difference]: Start difference. First operand has 226 places, 255 transitions, 570 flow. Second operand 2 states and 463 transitions. [2021-12-21 15:11:32,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 219 transitions, 518 flow [2021-12-21 15:11:32,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 219 transitions, 518 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:11:32,328 INFO L242 Difference]: Finished difference. Result has 226 places, 193 transitions, 431 flow [2021-12-21 15:11:32,329 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=431, PETRI_PLACES=226, PETRI_TRANSITIONS=193} [2021-12-21 15:11:32,330 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, 0 predicate places. [2021-12-21 15:11:32,330 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 193 transitions, 431 flow [2021-12-21 15:11:32,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 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) [2021-12-21 15:11:32,331 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:32,331 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:32,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-21 15:11:32,331 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:32,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:32,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1458783922, now seen corresponding path program 1 times [2021-12-21 15:11:32,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:32,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048566299] [2021-12-21 15:11:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:32,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:32,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:32,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048566299] [2021-12-21 15:11:32,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048566299] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:11:32,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:11:32,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 15:11:32,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587084070] [2021-12-21 15:11:32,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:11:32,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:11:32,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:32,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:11:32,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:11:32,365 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 255 [2021-12-21 15:11:32,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 193 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 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) [2021-12-21 15:11:32,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:32,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 255 [2021-12-21 15:11:32,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:32,420 INFO L129 PetriNetUnfolder]: 0/289 cut-off events. [2021-12-21 15:11:32,420 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-12-21 15:11:32,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 289 events. 0/289 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 832 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2021-12-21 15:11:32,421 INFO L132 encePairwiseOnDemand]: 252/255 looper letters, 14 selfloop transitions, 2 changer transitions 0/197 dead transitions. [2021-12-21 15:11:32,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 197 transitions, 471 flow [2021-12-21 15:11:32,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:11:32,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 15:11:32,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 623 transitions. [2021-12-21 15:11:32,423 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8143790849673203 [2021-12-21 15:11:32,423 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 623 transitions. [2021-12-21 15:11:32,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 623 transitions. [2021-12-21 15:11:32,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:32,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 623 transitions. [2021-12-21 15:11:32,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 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) [2021-12-21 15:11:32,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-12-21 15:11:32,427 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-12-21 15:11:32,428 INFO L186 Difference]: Start difference. First operand has 226 places, 193 transitions, 431 flow. Second operand 3 states and 623 transitions. [2021-12-21 15:11:32,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 197 transitions, 471 flow [2021-12-21 15:11:32,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 197 transitions, 451 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-12-21 15:11:32,432 INFO L242 Difference]: Finished difference. Result has 208 places, 194 transitions, 423 flow [2021-12-21 15:11:32,433 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=423, PETRI_PLACES=208, PETRI_TRANSITIONS=194} [2021-12-21 15:11:32,434 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, -18 predicate places. [2021-12-21 15:11:32,434 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 194 transitions, 423 flow [2021-12-21 15:11:32,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 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) [2021-12-21 15:11:32,434 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:32,434 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-21 15:11:32,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-21 15:11:32,435 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:32,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:32,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1766140106, now seen corresponding path program 1 times [2021-12-21 15:11:32,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:32,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946411681] [2021-12-21 15:11:32,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:32,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:32,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:32,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946411681] [2021-12-21 15:11:32,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946411681] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:11:32,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327018305] [2021-12-21 15:11:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:32,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:11:32,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:11:32,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:11:32,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 15:11:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:32,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 15:11:32,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:11:32,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:32,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:11:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:11:32,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327018305] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:11:32,836 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 15:11:32,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-21 15:11:32,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613719419] [2021-12-21 15:11:32,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 15:11:32,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-21 15:11:32,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:32,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 15:11:32,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-21 15:11:32,840 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 255 [2021-12-21 15:11:32,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 194 transitions, 423 flow. Second operand has 10 states, 10 states have (on average 203.3) internal successors, (2033), 10 states have internal predecessors, (2033), 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) [2021-12-21 15:11:32,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:32,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 255 [2021-12-21 15:11:32,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:11:32,957 INFO L129 PetriNetUnfolder]: 0/261 cut-off events. [2021-12-21 15:11:32,958 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-12-21 15:11:32,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 261 events. 0/261 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 657 event pairs, 0 based on Foata normal form. 2/263 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2021-12-21 15:11:32,959 INFO L132 encePairwiseOnDemand]: 249/255 looper letters, 15 selfloop transitions, 9 changer transitions 0/204 dead transitions. [2021-12-21 15:11:32,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 204 transitions, 493 flow [2021-12-21 15:11:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:11:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:11:32,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1835 transitions. [2021-12-21 15:11:32,970 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7995642701525054 [2021-12-21 15:11:32,970 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1835 transitions. [2021-12-21 15:11:32,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1835 transitions. [2021-12-21 15:11:32,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:11:32,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1835 transitions. [2021-12-21 15:11:32,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.88888888888889) internal successors, (1835), 9 states have internal predecessors, (1835), 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) [2021-12-21 15:11:32,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 255.0) internal successors, (2550), 10 states have internal predecessors, (2550), 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) [2021-12-21 15:11:32,984 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 255.0) internal successors, (2550), 10 states have internal predecessors, (2550), 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) [2021-12-21 15:11:32,984 INFO L186 Difference]: Start difference. First operand has 208 places, 194 transitions, 423 flow. Second operand 9 states and 1835 transitions. [2021-12-21 15:11:32,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 204 transitions, 493 flow [2021-12-21 15:11:32,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 204 transitions, 491 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-21 15:11:32,988 INFO L242 Difference]: Finished difference. Result has 218 places, 200 transitions, 471 flow [2021-12-21 15:11:32,989 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=471, PETRI_PLACES=218, PETRI_TRANSITIONS=200} [2021-12-21 15:11:32,989 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, -8 predicate places. [2021-12-21 15:11:32,989 INFO L470 AbstractCegarLoop]: Abstraction has has 218 places, 200 transitions, 471 flow [2021-12-21 15:11:32,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 203.3) internal successors, (2033), 10 states have internal predecessors, (2033), 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) [2021-12-21 15:11:32,990 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:11:32,991 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:11:33,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-21 15:11:33,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-21 15:11:33,212 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-21 15:11:33,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:11:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1937188195, now seen corresponding path program 1 times [2021-12-21 15:11:33,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:11:33,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183041038] [2021-12-21 15:11:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:11:33,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:11:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:11:33,297 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-21 15:11:33,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:11:33,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183041038] [2021-12-21 15:11:33,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183041038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:11:33,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:11:33,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 15:11:33,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486945006] [2021-12-21 15:11:33,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:11:33,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 15:11:33,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:11:33,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 15:11:33,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 15:11:33,300 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 255 [2021-12-21 15:11:33,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 200 transitions, 471 flow. Second operand has 5 states, 5 states have (on average 184.6) internal successors, (923), 5 states have internal predecessors, (923), 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) [2021-12-21 15:11:33,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:11:33,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 255 [2021-12-21 15:11:33,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand