./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-time-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-time-subst.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 425b7585795fe708743c28590b0a1599ab1e5a93 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 14:23:33,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 14:23:33,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 14:23:33,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-08 14:23:33,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-08 14:23:33,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-08 14:23:33,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-08 14:23:33,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-08 14:23:33,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-08 14:23:33,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-08 14:23:33,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-08 14:23:33,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-08 14:23:33,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-08 14:23:33,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-08 14:23:33,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-08 14:23:33,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-08 14:23:33,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-08 14:23:33,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-08 14:23:33,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-08 14:23:33,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-08 14:23:33,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-08 14:23:33,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-08 14:23:33,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-08 14:23:33,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-08 14:23:33,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-08 14:23:33,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-08 14:23:33,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-08 14:23:33,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-08 14:23:33,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-08 14:23:33,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-08 14:23:33,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-08 14:23:33,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-08 14:23:33,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-08 14:23:33,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-08 14:23:33,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-08 14:23:33,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-08 14:23:33,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-08 14:23:33,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-08 14:23:33,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 14:23:34,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 14:23:34,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 14:23:34,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-08 14:23:34,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 14:23:34,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 14:23:34,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 14:23:34,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 14:23:34,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 14:23:34,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 14:23:34,063 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 14:23:34,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 14:23:34,064 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 14:23:34,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 14:23:34,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 14:23:34,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 14:23:34,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 14:23:34,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 14:23:34,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 14:23:34,067 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 14:23:34,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 14:23:34,068 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 14:23:34,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 14:23:34,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 14:23:34,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 14:23:34,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 14:23:34,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 14:23:34,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 14:23:34,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 14:23:34,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 14:23:34,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 14:23:34,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 14:23:34,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 14:23:34,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 14:23:34,071 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 425b7585795fe708743c28590b0a1599ab1e5a93 [2021-10-08 14:23:34,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 14:23:34,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 14:23:34,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 14:23:34,567 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 14:23:34,568 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 14:23:34,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2021-10-08 14:23:34,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c80622f95/f09ba943875244e2ba2eddb4f63c6ad3/FLAG1e1dda363 [2021-10-08 14:23:35,440 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 14:23:35,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2021-10-08 14:23:35,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c80622f95/f09ba943875244e2ba2eddb4f63c6ad3/FLAG1e1dda363 [2021-10-08 14:23:35,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c80622f95/f09ba943875244e2ba2eddb4f63c6ad3 [2021-10-08 14:23:35,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 14:23:35,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 14:23:35,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 14:23:35,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 14:23:35,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 14:23:35,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 02:23:35" (1/1) ... [2021-10-08 14:23:35,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32bb1e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:35, skipping insertion in model container [2021-10-08 14:23:35,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 02:23:35" (1/1) ... [2021-10-08 14:23:35,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 14:23:35,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 14:23:36,020 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-subst.wvr.c[2875,2888] [2021-10-08 14:23:36,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 14:23:36,038 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 14:23:36,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-subst.wvr.c[2875,2888] [2021-10-08 14:23:36,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 14:23:36,086 INFO L208 MainTranslator]: Completed translation [2021-10-08 14:23:36,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36 WrapperNode [2021-10-08 14:23:36,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 14:23:36,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 14:23:36,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 14:23:36,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 14:23:36,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 14:23:36,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 14:23:36,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 14:23:36,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 14:23:36,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 14:23:36,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 14:23:36,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 14:23:36,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 14:23:36,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (1/1) ... [2021-10-08 14:23:36,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 14:23:36,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 14:23:36,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-08 14:23:36,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-08 14:23:36,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 14:23:36,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 14:23:36,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 14:23:36,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 14:23:36,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 14:23:36,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 14:23:36,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 14:23:36,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 14:23:36,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 14:23:36,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-08 14:23:36,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-08 14:23:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 14:23:36,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 14:23:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 14:23:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 14:23:36,365 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 14:23:37,682 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 14:23:37,683 INFO L299 CfgBuilder]: Removed 42 assume(true) statements. [2021-10-08 14:23:37,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 02:23:37 BoogieIcfgContainer [2021-10-08 14:23:37,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 14:23:37,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 14:23:37,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 14:23:37,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 14:23:37,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 02:23:35" (1/3) ... [2021-10-08 14:23:37,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f0ccd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 02:23:37, skipping insertion in model container [2021-10-08 14:23:37,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 02:23:36" (2/3) ... [2021-10-08 14:23:37,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f0ccd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 02:23:37, skipping insertion in model container [2021-10-08 14:23:37,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 02:23:37" (3/3) ... [2021-10-08 14:23:37,695 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-time-subst.wvr.c [2021-10-08 14:23:37,702 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 14:23:37,702 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 14:23:37,703 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-08 14:23:37,703 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 14:23:37,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,738 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,739 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,739 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,739 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,739 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,739 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,740 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,740 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,740 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,740 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,741 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,741 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,741 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,742 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,742 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,742 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,742 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,743 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,743 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,743 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,743 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,745 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,745 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,746 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,746 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,746 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,746 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,747 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,748 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,749 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,749 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,749 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,749 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,749 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,750 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,750 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,750 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,750 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,751 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,751 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,751 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,752 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,752 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,752 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,753 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,754 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,755 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,755 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,756 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,756 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,756 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,756 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,756 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,757 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,757 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,757 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,757 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,758 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,758 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,759 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,759 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,762 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,763 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,763 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,763 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,764 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,768 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,768 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,768 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,769 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,769 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,769 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,769 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,770 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,770 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,770 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,770 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,771 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 14:23:37,782 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 14:23:37,833 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 14:23:37,841 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-08 14:23:37,841 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-08 14:23:37,858 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 14:23:37,871 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 104 transitions, 232 flow [2021-10-08 14:23:37,875 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 104 transitions, 232 flow [2021-10-08 14:23:37,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 104 transitions, 232 flow [2021-10-08 14:23:37,931 INFO L129 PetriNetUnfolder]: 1/101 cut-off events. [2021-10-08 14:23:37,932 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 14:23:37,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 101 events. 1/101 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-10-08 14:23:37,940 INFO L116 LiptonReduction]: Number of co-enabled transitions 270 [2021-10-08 14:23:44,835 INFO L131 LiptonReduction]: Checked pairs total: 463 [2021-10-08 14:23:44,835 INFO L133 LiptonReduction]: Total number of compositions: 86 [2021-10-08 14:23:44,845 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2021-10-08 14:23:44,859 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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) [2021-10-08 14:23:44,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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) [2021-10-08 14:23:44,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 14:23:44,872 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 14:23:44,873 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 14:23:44,873 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-08 14:23:44,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 14:23:44,880 INFO L82 PathProgramCache]: Analyzing trace with hash 725726488, now seen corresponding path program 1 times [2021-10-08 14:23:44,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 14:23:44,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558509161] [2021-10-08 14:23:44,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 14:23:44,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 14:23:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 14:23:46,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 14:23:46,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 14:23:46,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558509161] [2021-10-08 14:23:46,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558509161] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 14:23:46,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 14:23:46,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 14:23:46,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370971281] [2021-10-08 14:23:46,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 14:23:46,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 14:23:46,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 14:23:46,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 14:23:46,146 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:46,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 14:23:46,385 INFO L93 Difference]: Finished difference Result 67 states and 106 transitions. [2021-10-08 14:23:46,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 14:23:46,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-08 14:23:46,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 14:23:46,398 INFO L225 Difference]: With dead ends: 67 [2021-10-08 14:23:46,398 INFO L226 Difference]: Without dead ends: 52 [2021-10-08 14:23:46,400 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 238.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 14:23:46,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-08 14:23:46,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2021-10-08 14:23:46,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 43 states have internal predecessors, (74), 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) [2021-10-08 14:23:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 74 transitions. [2021-10-08 14:23:46,440 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 74 transitions. Word has length 16 [2021-10-08 14:23:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 14:23:46,441 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 74 transitions. [2021-10-08 14:23:46,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2021-10-08 14:23:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 14:23:46,442 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 14:23:46,443 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 14:23:46,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 14:23:46,444 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-08 14:23:46,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 14:23:46,445 INFO L82 PathProgramCache]: Analyzing trace with hash 2016161892, now seen corresponding path program 2 times [2021-10-08 14:23:46,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 14:23:46,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696789639] [2021-10-08 14:23:46,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 14:23:46,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 14:23:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 14:23:46,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 14:23:46,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 14:23:46,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696789639] [2021-10-08 14:23:46,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696789639] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 14:23:46,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 14:23:46,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 14:23:46,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556789736] [2021-10-08 14:23:46,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 14:23:46,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 14:23:46,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 14:23:46,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 14:23:46,925 INFO L87 Difference]: Start difference. First operand 44 states and 74 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:47,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 14:23:47,108 INFO L93 Difference]: Finished difference Result 63 states and 94 transitions. [2021-10-08 14:23:47,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 14:23:47,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-08 14:23:47,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 14:23:47,110 INFO L225 Difference]: With dead ends: 63 [2021-10-08 14:23:47,110 INFO L226 Difference]: Without dead ends: 44 [2021-10-08 14:23:47,111 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 171.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 14:23:47,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-08 14:23:47,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2021-10-08 14:23:47,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 14:23:47,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-10-08 14:23:47,118 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16 [2021-10-08 14:23:47,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 14:23:47,119 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-10-08 14:23:47,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:47,119 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-10-08 14:23:47,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 14:23:47,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 14:23:47,120 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 14:23:47,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-08 14:23:47,121 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-08 14:23:47,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 14:23:47,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1221532322, now seen corresponding path program 3 times [2021-10-08 14:23:47,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 14:23:47,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435958442] [2021-10-08 14:23:47,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 14:23:47,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 14:23:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 14:23:47,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 14:23:47,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 14:23:47,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435958442] [2021-10-08 14:23:47,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435958442] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 14:23:47,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 14:23:47,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 14:23:47,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522814580] [2021-10-08 14:23:47,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 14:23:47,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 14:23:47,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 14:23:47,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 14:23:47,706 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 14:23:48,004 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2021-10-08 14:23:48,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 14:23:48,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-08 14:23:48,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 14:23:48,006 INFO L225 Difference]: With dead ends: 51 [2021-10-08 14:23:48,006 INFO L226 Difference]: Without dead ends: 36 [2021-10-08 14:23:48,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 385.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 14:23:48,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-08 14:23:48,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2021-10-08 14:23:48,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 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) [2021-10-08 14:23:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 40 transitions. [2021-10-08 14:23:48,011 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 40 transitions. Word has length 16 [2021-10-08 14:23:48,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 14:23:48,012 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 40 transitions. [2021-10-08 14:23:48,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:48,012 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2021-10-08 14:23:48,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 14:23:48,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 14:23:48,014 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 14:23:48,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-08 14:23:48,014 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-08 14:23:48,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 14:23:48,015 INFO L82 PathProgramCache]: Analyzing trace with hash -723277740, now seen corresponding path program 4 times [2021-10-08 14:23:48,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 14:23:48,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625268266] [2021-10-08 14:23:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 14:23:48,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 14:23:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 14:23:48,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 14:23:48,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 14:23:48,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625268266] [2021-10-08 14:23:48,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625268266] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 14:23:48,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 14:23:48,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 14:23:48,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314069240] [2021-10-08 14:23:48,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 14:23:48,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 14:23:48,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 14:23:48,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 14:23:48,551 INFO L87 Difference]: Start difference. First operand 28 states and 40 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:48,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 14:23:48,742 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2021-10-08 14:23:48,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 14:23:48,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-08 14:23:48,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 14:23:48,743 INFO L225 Difference]: With dead ends: 37 [2021-10-08 14:23:48,743 INFO L226 Difference]: Without dead ends: 24 [2021-10-08 14:23:48,744 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 222.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 14:23:48,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-08 14:23:48,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-08 14:23:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 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) [2021-10-08 14:23:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-10-08 14:23:48,748 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 16 [2021-10-08 14:23:48,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 14:23:48,748 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-08 14:23:48,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2021-10-08 14:23:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 14:23:48,749 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 14:23:48,750 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 14:23:48,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-08 14:23:48,750 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-08 14:23:48,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 14:23:48,751 INFO L82 PathProgramCache]: Analyzing trace with hash 625514120, now seen corresponding path program 5 times [2021-10-08 14:23:48,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 14:23:48,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60588810] [2021-10-08 14:23:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 14:23:48,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 14:23:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 14:23:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 14:23:49,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 14:23:49,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60588810] [2021-10-08 14:23:49,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60588810] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 14:23:49,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 14:23:49,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 14:23:49,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144592473] [2021-10-08 14:23:49,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 14:23:49,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 14:23:49,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 14:23:49,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 14:23:49,178 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:49,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 14:23:49,407 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2021-10-08 14:23:49,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 14:23:49,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-08 14:23:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 14:23:49,408 INFO L225 Difference]: With dead ends: 31 [2021-10-08 14:23:49,409 INFO L226 Difference]: Without dead ends: 22 [2021-10-08 14:23:49,409 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 283.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 14:23:49,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-08 14:23:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-08 14:23:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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) [2021-10-08 14:23:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-10-08 14:23:49,413 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 16 [2021-10-08 14:23:49,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 14:23:49,414 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-10-08 14:23:49,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:49,414 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-10-08 14:23:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 14:23:49,415 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 14:23:49,415 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 14:23:49,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-08 14:23:49,416 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-08 14:23:49,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 14:23:49,417 INFO L82 PathProgramCache]: Analyzing trace with hash -2047258888, now seen corresponding path program 6 times [2021-10-08 14:23:49,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 14:23:49,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365283004] [2021-10-08 14:23:49,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 14:23:49,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 14:23:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 14:23:50,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 14:23:50,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 14:23:50,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365283004] [2021-10-08 14:23:50,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365283004] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 14:23:50,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 14:23:50,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 14:23:50,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611127680] [2021-10-08 14:23:50,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 14:23:50,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 14:23:50,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 14:23:50,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 14:23:50,040 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 14:23:50,248 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-10-08 14:23:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 14:23:50,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-08 14:23:50,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 14:23:50,249 INFO L225 Difference]: With dead ends: 21 [2021-10-08 14:23:50,249 INFO L226 Difference]: Without dead ends: 0 [2021-10-08 14:23:50,250 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 328.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 14:23:50,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-08 14:23:50,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-08 14:23:50,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 14:23:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-08 14:23:50,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-08 14:23:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 14:23:50,251 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-08 14:23:50,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-08 14:23:50,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-08 14:23:50,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-08 14:23:50,255 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-08 14:23:50,257 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 14:23:50,257 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 14:23:50,257 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 14:23:50,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-08 14:23:50,264 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 14:23:50,264 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 14:23:50,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 02:23:50 BasicIcfg [2021-10-08 14:23:50,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 14:23:50,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-08 14:23:50,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-08 14:23:50,268 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-08 14:23:50,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 02:23:37" (3/4) ... [2021-10-08 14:23:50,272 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-08 14:23:50,280 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-08 14:23:50,280 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-08 14:23:50,280 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-08 14:23:50,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-08 14:23:50,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-08 14:23:50,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 14:23:50,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 14:23:50,371 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-08 14:23:50,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-08 14:23:50,375 INFO L168 Benchmark]: Toolchain (without parser) took 14599.96 ms. Allocated memory was 58.7 MB in the beginning and 130.0 MB in the end (delta: 71.3 MB). Free memory was 34.5 MB in the beginning and 50.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.1 GB. [2021-10-08 14:23:50,378 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 21.1 MB in the beginning and 21.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-08 14:23:50,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.35 ms. Allocated memory is still 58.7 MB. Free memory was 34.1 MB in the beginning and 36.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-08 14:23:50,380 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.48 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 34.0 MB in the end (delta: 2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-08 14:23:50,382 INFO L168 Benchmark]: Boogie Preprocessor took 70.13 ms. Allocated memory is still 58.7 MB. Free memory was 34.0 MB in the beginning and 32.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-08 14:23:50,383 INFO L168 Benchmark]: RCFGBuilder took 1451.27 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 32.3 MB in the beginning and 53.0 MB in the end (delta: -20.7 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-10-08 14:23:50,384 INFO L168 Benchmark]: TraceAbstraction took 12579.24 ms. Allocated memory was 73.4 MB in the beginning and 130.0 MB in the end (delta: 56.6 MB). Free memory was 52.6 MB in the beginning and 53.1 MB in the end (delta: -573.7 kB). Peak memory consumption was 56.3 MB. Max. memory is 16.1 GB. [2021-10-08 14:23:50,384 INFO L168 Benchmark]: Witness Printer took 105.84 ms. Allocated memory is still 130.0 MB. Free memory was 53.1 MB in the beginning and 50.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-08 14:23:50,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 21.1 MB in the beginning and 21.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.35 ms. Allocated memory is still 58.7 MB. Free memory was 34.1 MB in the beginning and 36.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.48 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 34.0 MB in the end (delta: 2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.13 ms. Allocated memory is still 58.7 MB. Free memory was 34.0 MB in the beginning and 32.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1451.27 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 32.3 MB in the beginning and 53.0 MB in the end (delta: -20.7 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12579.24 ms. Allocated memory was 73.4 MB in the beginning and 130.0 MB in the end (delta: 56.6 MB). Free memory was 52.6 MB in the beginning and 53.1 MB in the end (delta: -573.7 kB). Peak memory consumption was 56.3 MB. Max. memory is 16.1 GB. * Witness Printer took 105.84 ms. Allocated memory is still 130.0 MB. Free memory was 53.1 MB in the beginning and 50.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6960.8ms, 113 PlacesBefore, 30 PlacesAfterwards, 104 TransitionsBefore, 20 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 7 FixpointIterations, 67 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 86 TotalNumberOfCompositions, 463 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 463, positive: 463, positive conditional: 0, positive unconditional: 463, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 220, positive: 220, positive conditional: 0, positive unconditional: 220, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 220, positive: 220, positive conditional: 0, positive unconditional: 220, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 463, positive: 243, positive conditional: 0, positive unconditional: 243, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 220, unknown conditional: 0, unknown unconditional: 220] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 119 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 12431.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 16.8ms, AutomataDifference: 1400.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7018.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 141 SDtfs, 138 SDslu, 221 SDs, 0 SdLazy, 98 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 232.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1630.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 42.2ms AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.2ms SsaConstructionTime, 676.0ms SatisfiabilityAnalysisTime, 3006.9ms InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-08 14:23:50,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...