./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix057_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix057_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9f0d6f00c4a03763e12a033ab517f3e7d39b81a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 22:18:03,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 22:18:03,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 22:18:03,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 22:18:03,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 22:18:03,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 22:18:03,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 22:18:03,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 22:18:03,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 22:18:03,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 22:18:03,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 22:18:03,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 22:18:03,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 22:18:03,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 22:18:03,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 22:18:03,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 22:18:03,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 22:18:03,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 22:18:03,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 22:18:03,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 22:18:03,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 22:18:03,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 22:18:03,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 22:18:03,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 22:18:03,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 22:18:03,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 22:18:03,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 22:18:03,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 22:18:03,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 22:18:03,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 22:18:03,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 22:18:03,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 22:18:03,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 22:18:03,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 22:18:03,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 22:18:03,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 22:18:03,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 22:18:03,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 22:18:03,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 22:18:03,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 22:18:03,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 22:18:03,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 22:18:04,003 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 22:18:04,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 22:18:04,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 22:18:04,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 22:18:04,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 22:18:04,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 22:18:04,007 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 22:18:04,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 22:18:04,008 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 22:18:04,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 22:18:04,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 22:18:04,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 22:18:04,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 22:18:04,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 22:18:04,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 22:18:04,010 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 22:18:04,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 22:18:04,016 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 22:18:04,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 22:18:04,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 22:18:04,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 22:18:04,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 22:18:04,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:18:04,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 22:18:04,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 22:18:04,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 22:18:04,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 22:18:04,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 22:18:04,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 22:18:04,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 22:18:04,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9f0d6f00c4a03763e12a033ab517f3e7d39b81a [2021-08-29 22:18:04,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 22:18:04,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 22:18:04,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 22:18:04,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 22:18:04,399 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 22:18:04,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix057_rmo.opt.i [2021-08-29 22:18:04,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94da60e4e/b6bb62070f654f3ebb4c69e753b0835a/FLAG398d411f3 [2021-08-29 22:18:04,932 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 22:18:04,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_rmo.opt.i [2021-08-29 22:18:04,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94da60e4e/b6bb62070f654f3ebb4c69e753b0835a/FLAG398d411f3 [2021-08-29 22:18:05,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94da60e4e/b6bb62070f654f3ebb4c69e753b0835a [2021-08-29 22:18:05,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 22:18:05,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 22:18:05,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 22:18:05,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 22:18:05,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 22:18:05,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8d190c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05, skipping insertion in model container [2021-08-29 22:18:05,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 22:18:05,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 22:18:05,504 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_rmo.opt.i[948,961] [2021-08-29 22:18:05,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:18:05,680 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 22:18:05,689 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_rmo.opt.i[948,961] [2021-08-29 22:18:05,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:18:05,775 INFO L208 MainTranslator]: Completed translation [2021-08-29 22:18:05,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05 WrapperNode [2021-08-29 22:18:05,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 22:18:05,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 22:18:05,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 22:18:05,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 22:18:05,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 22:18:05,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 22:18:05,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 22:18:05,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 22:18:05,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 22:18:05,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 22:18:05,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 22:18:05,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 22:18:05,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (1/1) ... [2021-08-29 22:18:05,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:18:05,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 22:18:05,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 22:18:05,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 22:18:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 22:18:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-29 22:18:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 22:18:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 22:18:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-29 22:18:05,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-29 22:18:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-29 22:18:05,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-29 22:18:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-29 22:18:05,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-29 22:18:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-29 22:18:05,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-29 22:18:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 22:18:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-29 22:18:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 22:18:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 22:18:05,970 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-29 22:18:06,616 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 22:18:06,616 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-29 22:18:06,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:18:06 BoogieIcfgContainer [2021-08-29 22:18:06,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 22:18:06,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 22:18:06,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 22:18:06,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 22:18:06,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:18:05" (1/3) ... [2021-08-29 22:18:06,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fa862e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:18:06, skipping insertion in model container [2021-08-29 22:18:06,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:18:05" (2/3) ... [2021-08-29 22:18:06,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fa862e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:18:06, skipping insertion in model container [2021-08-29 22:18:06,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:18:06" (3/3) ... [2021-08-29 22:18:06,628 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_rmo.opt.i [2021-08-29 22:18:06,632 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-29 22:18:06,632 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 22:18:06,632 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-29 22:18:06,633 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-29 22:18:06,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,681 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,681 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,681 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,681 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,681 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,681 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,681 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,683 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,683 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,684 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,684 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,685 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,685 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,686 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,686 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,686 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,687 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,687 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,687 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,687 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,705 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,705 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,706 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,706 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,706 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,706 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,707 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,707 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,707 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,707 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,707 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,708 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,708 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,708 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,708 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,708 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,709 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,709 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,709 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,709 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,710 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,710 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,711 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,711 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,711 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,711 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,712 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,712 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,713 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,713 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,713 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,713 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,713 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,713 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,715 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,715 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,715 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,715 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,718 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,719 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,719 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,721 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,721 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,722 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,722 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,722 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,723 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,723 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,723 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,723 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,729 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,729 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,730 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,730 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,732 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,732 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:18:06,733 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-29 22:18:06,775 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 22:18:06,785 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 [2021-08-29 22:18:06,785 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-08-29 22:18:06,801 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-29 22:18:06,813 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 124 transitions, 268 flow [2021-08-29 22:18:06,815 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 124 transitions, 268 flow [2021-08-29 22:18:06,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 124 transitions, 268 flow [2021-08-29 22:18:06,892 INFO L129 PetriNetUnfolder]: 2/120 cut-off events. [2021-08-29 22:18:06,896 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-29 22:18:06,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2021-08-29 22:18:06,907 INFO L116 LiptonReduction]: Number of co-enabled transitions 2682 [2021-08-29 22:18:19,199 INFO L131 LiptonReduction]: Checked pairs total: 6268 [2021-08-29 22:18:19,199 INFO L133 LiptonReduction]: Total number of compositions: 101 [2021-08-29 22:18:19,206 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 31 transitions, 82 flow [2021-08-29 22:18:19,307 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2282 states, 2279 states have (on average 3.8121983326020183) internal successors, (8688), 2281 states have internal predecessors, (8688), 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) [2021-08-29 22:18:19,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 2282 states, 2279 states have (on average 3.8121983326020183) internal successors, (8688), 2281 states have internal predecessors, (8688), 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) [2021-08-29 22:18:19,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-29 22:18:19,326 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:19,327 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:19,328 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:19,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:19,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1638475840, now seen corresponding path program 1 times [2021-08-29 22:18:19,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:19,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155097009] [2021-08-29 22:18:19,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:19,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:19,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:19,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:19,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155097009] [2021-08-29 22:18:19,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155097009] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:19,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:19,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-29 22:18:19,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185753583] [2021-08-29 22:18:19,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 22:18:19,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:19,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 22:18:19,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:19,643 INFO L87 Difference]: Start difference. First operand has 2282 states, 2279 states have (on average 3.8121983326020183) internal successors, (8688), 2281 states have internal predecessors, (8688), 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 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-08-29 22:18:19,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:19,746 INFO L93 Difference]: Finished difference Result 1882 states and 7048 transitions. [2021-08-29 22:18:19,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:18:19,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-08-29 22:18:19,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:19,773 INFO L225 Difference]: With dead ends: 1882 [2021-08-29 22:18:19,773 INFO L226 Difference]: Without dead ends: 1802 [2021-08-29 22:18:19,774 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:19,777 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.51ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:19,778 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 27 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 48.51ms Time] [2021-08-29 22:18:19,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2021-08-29 22:18:19,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1802. [2021-08-29 22:18:19,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1801 states have (on average 3.7667962243198225) internal successors, (6784), 1801 states have internal predecessors, (6784), 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) [2021-08-29 22:18:19,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 6784 transitions. [2021-08-29 22:18:19,891 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 6784 transitions. Word has length 9 [2021-08-29 22:18:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:19,892 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 6784 transitions. [2021-08-29 22:18:19,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-08-29 22:18:19,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 6784 transitions. [2021-08-29 22:18:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 22:18:19,894 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:19,895 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:19,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 22:18:19,895 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:19,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:19,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1677622827, now seen corresponding path program 1 times [2021-08-29 22:18:19,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:19,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31689804] [2021-08-29 22:18:19,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:19,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:20,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:20,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31689804] [2021-08-29 22:18:20,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31689804] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:20,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:20,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-29 22:18:20,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419258247] [2021-08-29 22:18:20,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 22:18:20,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:20,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 22:18:20,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:20,096 INFO L87 Difference]: Start difference. First operand 1802 states and 6784 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-08-29 22:18:20,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:20,139 INFO L93 Difference]: Finished difference Result 1752 states and 6554 transitions. [2021-08-29 22:18:20,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:18:20,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-08-29 22:18:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:20,153 INFO L225 Difference]: With dead ends: 1752 [2021-08-29 22:18:20,154 INFO L226 Difference]: Without dead ends: 1752 [2021-08-29 22:18:20,154 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:20,155 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.19ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:20,156 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 25 Invalid, 23 Unknown, 0 Unchecked, 0.49ms Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 23.19ms Time] [2021-08-29 22:18:20,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2021-08-29 22:18:20,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1752. [2021-08-29 22:18:20,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1751 states have (on average 3.743003997715591) internal successors, (6554), 1751 states have internal predecessors, (6554), 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) [2021-08-29 22:18:20,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 6554 transitions. [2021-08-29 22:18:20,232 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 6554 transitions. Word has length 11 [2021-08-29 22:18:20,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:20,233 INFO L470 AbstractCegarLoop]: Abstraction has 1752 states and 6554 transitions. [2021-08-29 22:18:20,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-08-29 22:18:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 6554 transitions. [2021-08-29 22:18:20,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 22:18:20,235 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:20,235 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:20,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 22:18:20,236 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:20,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1241052862, now seen corresponding path program 1 times [2021-08-29 22:18:20,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:20,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500588261] [2021-08-29 22:18:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:20,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:20,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:20,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500588261] [2021-08-29 22:18:20,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500588261] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:20,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:20,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:18:20,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483931454] [2021-08-29 22:18:20,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:18:20,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:20,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:18:20,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:18:20,416 INFO L87 Difference]: Start difference. First operand 1752 states and 6554 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-08-29 22:18:20,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:20,469 INFO L93 Difference]: Finished difference Result 1724 states and 6430 transitions. [2021-08-29 22:18:20,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:18:20,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-08-29 22:18:20,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:20,506 INFO L225 Difference]: With dead ends: 1724 [2021-08-29 22:18:20,506 INFO L226 Difference]: Without dead ends: 1724 [2021-08-29 22:18:20,507 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.75ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:18:20,509 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.82ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.97ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:20,511 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 22 Invalid, 24 Unknown, 0 Unchecked, 0.82ms Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 29.97ms Time] [2021-08-29 22:18:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2021-08-29 22:18:20,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1724. [2021-08-29 22:18:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1723 states have (on average 3.731863029599536) internal successors, (6430), 1723 states have internal predecessors, (6430), 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) [2021-08-29 22:18:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 6430 transitions. [2021-08-29 22:18:20,589 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 6430 transitions. Word has length 12 [2021-08-29 22:18:20,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:20,589 INFO L470 AbstractCegarLoop]: Abstraction has 1724 states and 6430 transitions. [2021-08-29 22:18:20,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-08-29 22:18:20,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 6430 transitions. [2021-08-29 22:18:20,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 22:18:20,595 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:20,595 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:20,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 22:18:20,596 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:20,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:20,603 INFO L82 PathProgramCache]: Analyzing trace with hash -182112730, now seen corresponding path program 1 times [2021-08-29 22:18:20,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:20,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032274786] [2021-08-29 22:18:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:20,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:20,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:20,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032274786] [2021-08-29 22:18:20,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032274786] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:20,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:20,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:18:20,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500529075] [2021-08-29 22:18:20,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:18:20,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:20,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:18:20,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:18:20,792 INFO L87 Difference]: Start difference. First operand 1724 states and 6430 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-08-29 22:18:20,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:20,861 INFO L93 Difference]: Finished difference Result 1668 states and 6182 transitions. [2021-08-29 22:18:20,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 22:18:20,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-08-29 22:18:20,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:20,874 INFO L225 Difference]: With dead ends: 1668 [2021-08-29 22:18:20,874 INFO L226 Difference]: Without dead ends: 1668 [2021-08-29 22:18:20,874 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.98ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:18:20,875 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 54 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.04ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.88ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:20,876 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 35 Invalid, 40 Unknown, 0 Unchecked, 1.04ms Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 40.88ms Time] [2021-08-29 22:18:20,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2021-08-29 22:18:20,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1668. [2021-08-29 22:18:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1667 states have (on average 3.7084583083383325) internal successors, (6182), 1667 states have internal predecessors, (6182), 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) [2021-08-29 22:18:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 6182 transitions. [2021-08-29 22:18:20,960 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 6182 transitions. Word has length 13 [2021-08-29 22:18:20,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:20,960 INFO L470 AbstractCegarLoop]: Abstraction has 1668 states and 6182 transitions. [2021-08-29 22:18:20,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-08-29 22:18:20,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 6182 transitions. [2021-08-29 22:18:20,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 22:18:20,963 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:20,963 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:20,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 22:18:20,963 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:20,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:20,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1872787779, now seen corresponding path program 1 times [2021-08-29 22:18:20,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:20,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364094248] [2021-08-29 22:18:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:20,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:21,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:21,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364094248] [2021-08-29 22:18:21,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364094248] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:21,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:21,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:18:21,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468041240] [2021-08-29 22:18:21,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:18:21,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:21,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:18:21,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:18:21,085 INFO L87 Difference]: Start difference. First operand 1668 states and 6182 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-08-29 22:18:21,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:21,171 INFO L93 Difference]: Finished difference Result 1626 states and 6010 transitions. [2021-08-29 22:18:21,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 22:18:21,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-08-29 22:18:21,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:21,183 INFO L225 Difference]: With dead ends: 1626 [2021-08-29 22:18:21,183 INFO L226 Difference]: Without dead ends: 1626 [2021-08-29 22:18:21,184 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.77ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:18:21,185 INFO L928 BasicCegarLoop]: 19 mSDtfsCounter, 19 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.78ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:21,185 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 49 Invalid, 61 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 55.78ms Time] [2021-08-29 22:18:21,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2021-08-29 22:18:21,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1626. [2021-08-29 22:18:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1625 states have (on average 3.6984615384615385) internal successors, (6010), 1625 states have internal predecessors, (6010), 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) [2021-08-29 22:18:21,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 6010 transitions. [2021-08-29 22:18:21,283 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 6010 transitions. Word has length 14 [2021-08-29 22:18:21,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:21,307 INFO L470 AbstractCegarLoop]: Abstraction has 1626 states and 6010 transitions. [2021-08-29 22:18:21,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-08-29 22:18:21,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 6010 transitions. [2021-08-29 22:18:21,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 22:18:21,311 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:21,311 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:21,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 22:18:21,312 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:21,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:21,312 INFO L82 PathProgramCache]: Analyzing trace with hash 2073075207, now seen corresponding path program 1 times [2021-08-29 22:18:21,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:21,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091973358] [2021-08-29 22:18:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:21,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:21,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:21,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091973358] [2021-08-29 22:18:21,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091973358] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:21,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:21,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:18:21,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488768669] [2021-08-29 22:18:21,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:18:21,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:21,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:18:21,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:18:21,435 INFO L87 Difference]: Start difference. First operand 1626 states and 6010 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-08-29 22:18:21,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:21,527 INFO L93 Difference]: Finished difference Result 1722 states and 6348 transitions. [2021-08-29 22:18:21,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:18:21,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-08-29 22:18:21,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:21,544 INFO L225 Difference]: With dead ends: 1722 [2021-08-29 22:18:21,544 INFO L226 Difference]: Without dead ends: 1722 [2021-08-29 22:18:21,544 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 19.10ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:18:21,547 INFO L928 BasicCegarLoop]: 19 mSDtfsCounter, 65 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.51ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.80ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:21,548 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 45 Invalid, 66 Unknown, 0 Unchecked, 2.51ms Time], IncrementalHoareTripleChecker [14 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 66.80ms Time] [2021-08-29 22:18:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-08-29 22:18:21,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1598. [2021-08-29 22:18:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1597 states have (on average 3.6856606136505947) internal successors, (5886), 1597 states have internal predecessors, (5886), 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) [2021-08-29 22:18:21,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 5886 transitions. [2021-08-29 22:18:21,639 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 5886 transitions. Word has length 15 [2021-08-29 22:18:21,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:21,639 INFO L470 AbstractCegarLoop]: Abstraction has 1598 states and 5886 transitions. [2021-08-29 22:18:21,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-08-29 22:18:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 5886 transitions. [2021-08-29 22:18:21,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 22:18:21,660 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:21,660 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:21,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 22:18:21,661 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:21,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:21,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1080692775, now seen corresponding path program 1 times [2021-08-29 22:18:21,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:21,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596047896] [2021-08-29 22:18:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:21,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:21,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:21,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:21,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596047896] [2021-08-29 22:18:21,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596047896] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:21,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:21,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-29 22:18:21,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817508115] [2021-08-29 22:18:21,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 22:18:21,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:21,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 22:18:21,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:21,725 INFO L87 Difference]: Start difference. First operand 1598 states and 5886 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2021-08-29 22:18:21,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:21,759 INFO L93 Difference]: Finished difference Result 1586 states and 5836 transitions. [2021-08-29 22:18:21,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:18:21,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2021-08-29 22:18:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:21,772 INFO L225 Difference]: With dead ends: 1586 [2021-08-29 22:18:21,772 INFO L226 Difference]: Without dead ends: 1586 [2021-08-29 22:18:21,772 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:21,773 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.04ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:21,773 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 22 Unknown, 0 Unchecked, 0.32ms Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 21.04ms Time] [2021-08-29 22:18:21,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2021-08-29 22:18:21,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2021-08-29 22:18:21,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 3.682018927444795) internal successors, (5836), 1585 states have internal predecessors, (5836), 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) [2021-08-29 22:18:21,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 5836 transitions. [2021-08-29 22:18:21,824 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 5836 transitions. Word has length 15 [2021-08-29 22:18:21,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:21,825 INFO L470 AbstractCegarLoop]: Abstraction has 1586 states and 5836 transitions. [2021-08-29 22:18:21,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2021-08-29 22:18:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 5836 transitions. [2021-08-29 22:18:21,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 22:18:21,829 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:21,829 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:21,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 22:18:21,829 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:21,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:21,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1401771853, now seen corresponding path program 1 times [2021-08-29 22:18:21,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:21,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138909140] [2021-08-29 22:18:21,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:21,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:21,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:21,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:21,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138909140] [2021-08-29 22:18:21,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138909140] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:21,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:21,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:18:21,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460008128] [2021-08-29 22:18:21,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 22:18:21,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:21,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 22:18:21,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:21,921 INFO L87 Difference]: Start difference. First operand 1586 states and 5836 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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) [2021-08-29 22:18:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:21,965 INFO L93 Difference]: Finished difference Result 2210 states and 7880 transitions. [2021-08-29 22:18:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:18:21,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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 [2021-08-29 22:18:21,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:21,992 INFO L225 Difference]: With dead ends: 2210 [2021-08-29 22:18:21,993 INFO L226 Difference]: Without dead ends: 1666 [2021-08-29 22:18:21,993 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:21,994 INFO L928 BasicCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.81ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:21,995 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 34 Invalid, 33 Unknown, 0 Unchecked, 2.04ms Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 26.81ms Time] [2021-08-29 22:18:21,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2021-08-29 22:18:22,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1570. [2021-08-29 22:18:22,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 3.5079668578712555) internal successors, (5504), 1569 states have internal predecessors, (5504), 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) [2021-08-29 22:18:22,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 5504 transitions. [2021-08-29 22:18:22,042 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 5504 transitions. Word has length 16 [2021-08-29 22:18:22,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:22,042 INFO L470 AbstractCegarLoop]: Abstraction has 1570 states and 5504 transitions. [2021-08-29 22:18:22,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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) [2021-08-29 22:18:22,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 5504 transitions. [2021-08-29 22:18:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 22:18:22,048 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:22,048 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:22,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 22:18:22,049 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:22,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:22,049 INFO L82 PathProgramCache]: Analyzing trace with hash -159180566, now seen corresponding path program 1 times [2021-08-29 22:18:22,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:22,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519376445] [2021-08-29 22:18:22,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:22,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:22,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:22,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519376445] [2021-08-29 22:18:22,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519376445] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:22,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:22,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 22:18:22,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654506129] [2021-08-29 22:18:22,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 22:18:22,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 22:18:22,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:18:22,237 INFO L87 Difference]: Start difference. First operand 1570 states and 5504 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-08-29 22:18:22,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:22,328 INFO L93 Difference]: Finished difference Result 1638 states and 5722 transitions. [2021-08-29 22:18:22,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:18:22,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 [2021-08-29 22:18:22,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:22,336 INFO L225 Difference]: With dead ends: 1638 [2021-08-29 22:18:22,336 INFO L226 Difference]: Without dead ends: 1638 [2021-08-29 22:18:22,336 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 34.37ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:18:22,337 INFO L928 BasicCegarLoop]: 19 mSDtfsCounter, 60 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.98ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.55ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:22,337 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 58 Invalid, 81 Unknown, 0 Unchecked, 0.98ms Time], IncrementalHoareTripleChecker [17 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 73.55ms Time] [2021-08-29 22:18:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-08-29 22:18:22,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1514. [2021-08-29 22:18:22,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 3.4923992068737606) internal successors, (5284), 1513 states have internal predecessors, (5284), 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) [2021-08-29 22:18:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 5284 transitions. [2021-08-29 22:18:22,385 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 5284 transitions. Word has length 16 [2021-08-29 22:18:22,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:22,385 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 5284 transitions. [2021-08-29 22:18:22,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-08-29 22:18:22,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 5284 transitions. [2021-08-29 22:18:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 22:18:22,389 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:22,389 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:22,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 22:18:22,390 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:22,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:22,390 INFO L82 PathProgramCache]: Analyzing trace with hash -920960370, now seen corresponding path program 1 times [2021-08-29 22:18:22,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:22,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673800979] [2021-08-29 22:18:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:22,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:22,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:22,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673800979] [2021-08-29 22:18:22,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673800979] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:22,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:22,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:18:22,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474945910] [2021-08-29 22:18:22,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:18:22,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:18:22,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:18:22,448 INFO L87 Difference]: Start difference. First operand 1514 states and 5284 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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) [2021-08-29 22:18:22,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:22,526 INFO L93 Difference]: Finished difference Result 1605 states and 5115 transitions. [2021-08-29 22:18:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:18:22,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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 [2021-08-29 22:18:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:22,533 INFO L225 Difference]: With dead ends: 1605 [2021-08-29 22:18:22,533 INFO L226 Difference]: Without dead ends: 1205 [2021-08-29 22:18:22,533 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:18:22,534 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 27 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.58ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.76ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:22,535 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 34 Invalid, 71 Unknown, 0 Unchecked, 0.58ms Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 58.76ms Time] [2021-08-29 22:18:22,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2021-08-29 22:18:22,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2021-08-29 22:18:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1204 states have (on average 3.1652823920265782) internal successors, (3811), 1204 states have internal predecessors, (3811), 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) [2021-08-29 22:18:22,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 3811 transitions. [2021-08-29 22:18:22,570 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 3811 transitions. Word has length 16 [2021-08-29 22:18:22,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:22,571 INFO L470 AbstractCegarLoop]: Abstraction has 1205 states and 3811 transitions. [2021-08-29 22:18:22,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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) [2021-08-29 22:18:22,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 3811 transitions. [2021-08-29 22:18:22,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 22:18:22,574 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:22,574 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:22,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 22:18:22,575 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:22,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:22,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1239163265, now seen corresponding path program 1 times [2021-08-29 22:18:22,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:22,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655098780] [2021-08-29 22:18:22,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:22,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:22,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:22,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:22,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655098780] [2021-08-29 22:18:22,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655098780] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:22,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:22,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:18:22,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787057860] [2021-08-29 22:18:22,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:18:22,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:22,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:18:22,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:18:22,647 INFO L87 Difference]: Start difference. First operand 1205 states and 3811 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-08-29 22:18:22,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:22,745 INFO L93 Difference]: Finished difference Result 1079 states and 3137 transitions. [2021-08-29 22:18:22,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:18:22,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2021-08-29 22:18:22,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:22,749 INFO L225 Difference]: With dead ends: 1079 [2021-08-29 22:18:22,749 INFO L226 Difference]: Without dead ends: 823 [2021-08-29 22:18:22,749 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.19ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:18:22,750 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 58 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.98ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.66ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:22,750 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 45 Invalid, 99 Unknown, 0 Unchecked, 0.98ms Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 80.66ms Time] [2021-08-29 22:18:22,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2021-08-29 22:18:22,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 823. [2021-08-29 22:18:22,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 822 states have (on average 2.8576642335766422) internal successors, (2349), 822 states have internal predecessors, (2349), 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) [2021-08-29 22:18:22,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 2349 transitions. [2021-08-29 22:18:22,773 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 2349 transitions. Word has length 17 [2021-08-29 22:18:22,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:22,773 INFO L470 AbstractCegarLoop]: Abstraction has 823 states and 2349 transitions. [2021-08-29 22:18:22,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-08-29 22:18:22,774 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 2349 transitions. [2021-08-29 22:18:22,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-29 22:18:22,776 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:22,776 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:22,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 22:18:22,776 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:22,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:22,777 INFO L82 PathProgramCache]: Analyzing trace with hash 634628423, now seen corresponding path program 1 times [2021-08-29 22:18:22,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:22,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298421109] [2021-08-29 22:18:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:22,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:22,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:22,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298421109] [2021-08-29 22:18:22,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298421109] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:22,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:22,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:18:22,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57817793] [2021-08-29 22:18:22,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:18:22,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:22,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:18:22,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:18:22,837 INFO L87 Difference]: Start difference. First operand 823 states and 2349 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2021-08-29 22:18:22,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:22,892 INFO L93 Difference]: Finished difference Result 1115 states and 3126 transitions. [2021-08-29 22:18:22,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 22:18:22,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2021-08-29 22:18:22,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:22,894 INFO L225 Difference]: With dead ends: 1115 [2021-08-29 22:18:22,895 INFO L226 Difference]: Without dead ends: 513 [2021-08-29 22:18:22,895 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.38ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:18:22,895 INFO L928 BasicCegarLoop]: 30 mSDtfsCounter, 24 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.51ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:22,896 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 62 Invalid, 56 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 42.51ms Time] [2021-08-29 22:18:22,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2021-08-29 22:18:22,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2021-08-29 22:18:22,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 512 states have (on average 2.638671875) internal successors, (1351), 512 states have internal predecessors, (1351), 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) [2021-08-29 22:18:22,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 1351 transitions. [2021-08-29 22:18:22,907 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 1351 transitions. Word has length 19 [2021-08-29 22:18:22,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:22,907 INFO L470 AbstractCegarLoop]: Abstraction has 513 states and 1351 transitions. [2021-08-29 22:18:22,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2021-08-29 22:18:22,908 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 1351 transitions. [2021-08-29 22:18:22,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-29 22:18:22,909 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:22,909 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:22,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 22:18:22,910 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:22,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:22,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1720530527, now seen corresponding path program 1 times [2021-08-29 22:18:22,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:22,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912310589] [2021-08-29 22:18:22,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:22,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:22,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:22,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:22,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912310589] [2021-08-29 22:18:22,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912310589] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:22,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:22,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 22:18:22,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116315191] [2021-08-29 22:18:22,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:18:22,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:22,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:18:22,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:18:22,968 INFO L87 Difference]: Start difference. First operand 513 states and 1351 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-08-29 22:18:23,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:23,068 INFO L93 Difference]: Finished difference Result 437 states and 1105 transitions. [2021-08-29 22:18:23,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:18:23,069 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2021-08-29 22:18:23,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:23,070 INFO L225 Difference]: With dead ends: 437 [2021-08-29 22:18:23,070 INFO L226 Difference]: Without dead ends: 369 [2021-08-29 22:18:23,071 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.10ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:18:23,071 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 65 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.77ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.21ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:23,071 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 50 Invalid, 120 Unknown, 0 Unchecked, 0.77ms Time], IncrementalHoareTripleChecker [12 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 87.21ms Time] [2021-08-29 22:18:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-08-29 22:18:23,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2021-08-29 22:18:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 368 states have (on average 2.551630434782609) internal successors, (939), 368 states have internal predecessors, (939), 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) [2021-08-29 22:18:23,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 939 transitions. [2021-08-29 22:18:23,079 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 939 transitions. Word has length 19 [2021-08-29 22:18:23,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:23,079 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 939 transitions. [2021-08-29 22:18:23,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-08-29 22:18:23,079 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 939 transitions. [2021-08-29 22:18:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-29 22:18:23,080 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:23,080 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:23,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-29 22:18:23,081 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:23,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:23,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1510881533, now seen corresponding path program 1 times [2021-08-29 22:18:23,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:23,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958637862] [2021-08-29 22:18:23,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:23,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:23,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:23,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:23,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958637862] [2021-08-29 22:18:23,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958637862] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:23,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:23,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-29 22:18:23,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082962333] [2021-08-29 22:18:23,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 22:18:23,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:23,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 22:18:23,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:18:23,161 INFO L87 Difference]: Start difference. First operand 369 states and 939 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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) [2021-08-29 22:18:23,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:23,259 INFO L93 Difference]: Finished difference Result 348 states and 896 transitions. [2021-08-29 22:18:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-29 22:18:23,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2021-08-29 22:18:23,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:23,261 INFO L225 Difference]: With dead ends: 348 [2021-08-29 22:18:23,261 INFO L226 Difference]: Without dead ends: 207 [2021-08-29 22:18:23,261 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.68ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-29 22:18:23,262 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 89 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.94ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:23,262 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 46 Invalid, 123 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [22 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 85.94ms Time] [2021-08-29 22:18:23,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-08-29 22:18:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-08-29 22:18:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 2.4902912621359223) internal successors, (513), 206 states have internal predecessors, (513), 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) [2021-08-29 22:18:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 513 transitions. [2021-08-29 22:18:23,267 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 513 transitions. Word has length 22 [2021-08-29 22:18:23,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:23,267 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 513 transitions. [2021-08-29 22:18:23,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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) [2021-08-29 22:18:23,267 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 513 transitions. [2021-08-29 22:18:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-29 22:18:23,268 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:23,268 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:23,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-29 22:18:23,268 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:23,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:23,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1718323758, now seen corresponding path program 1 times [2021-08-29 22:18:23,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:23,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27683350] [2021-08-29 22:18:23,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:23,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:23,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:23,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:23,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27683350] [2021-08-29 22:18:23,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27683350] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:23,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:23,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:18:23,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883176248] [2021-08-29 22:18:23,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 22:18:23,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:23,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 22:18:23,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:23,325 INFO L87 Difference]: Start difference. First operand 207 states and 513 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-08-29 22:18:23,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:23,353 INFO L93 Difference]: Finished difference Result 275 states and 676 transitions. [2021-08-29 22:18:23,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:18:23,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-08-29 22:18:23,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:23,355 INFO L225 Difference]: With dead ends: 275 [2021-08-29 22:18:23,355 INFO L226 Difference]: Without dead ends: 91 [2021-08-29 22:18:23,355 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:18:23,356 INFO L928 BasicCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.08ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:23,356 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 29 Unknown, 0 Unchecked, 0.15ms Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 26.08ms Time] [2021-08-29 22:18:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-08-29 22:18:23,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-08-29 22:18:23,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 2.188888888888889) internal successors, (197), 90 states have internal predecessors, (197), 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) [2021-08-29 22:18:23,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 197 transitions. [2021-08-29 22:18:23,359 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 197 transitions. Word has length 25 [2021-08-29 22:18:23,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:23,359 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 197 transitions. [2021-08-29 22:18:23,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-08-29 22:18:23,359 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 197 transitions. [2021-08-29 22:18:23,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-29 22:18:23,360 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:23,360 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:23,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-29 22:18:23,360 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:23,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:23,361 INFO L82 PathProgramCache]: Analyzing trace with hash 583869732, now seen corresponding path program 2 times [2021-08-29 22:18:23,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:23,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285407099] [2021-08-29 22:18:23,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:23,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:18:23,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:18:23,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:18:23,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285407099] [2021-08-29 22:18:23,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285407099] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:18:23,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:18:23,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-29 22:18:23,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916161181] [2021-08-29 22:18:23,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 22:18:23,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:18:23,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 22:18:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-29 22:18:23,560 INFO L87 Difference]: Start difference. First operand 91 states and 197 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-08-29 22:18:23,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:18:23,682 INFO L93 Difference]: Finished difference Result 117 states and 251 transitions. [2021-08-29 22:18:23,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:18:23,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2021-08-29 22:18:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:18:23,683 INFO L225 Difference]: With dead ends: 117 [2021-08-29 22:18:23,683 INFO L226 Difference]: Without dead ends: 63 [2021-08-29 22:18:23,683 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 101.45ms TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-08-29 22:18:23,684 INFO L928 BasicCegarLoop]: 23 mSDtfsCounter, 58 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.77ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.53ms IncrementalHoareTripleChecker+Time [2021-08-29 22:18:23,684 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 80 Invalid, 93 Unknown, 0 Unchecked, 0.77ms Time], IncrementalHoareTripleChecker [22 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 71.53ms Time] [2021-08-29 22:18:23,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-08-29 22:18:23,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-08-29 22:18:23,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.9516129032258065) internal successors, (121), 62 states have internal predecessors, (121), 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) [2021-08-29 22:18:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 121 transitions. [2021-08-29 22:18:23,686 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 121 transitions. Word has length 25 [2021-08-29 22:18:23,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:18:23,686 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 121 transitions. [2021-08-29 22:18:23,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-08-29 22:18:23,686 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 121 transitions. [2021-08-29 22:18:23,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-29 22:18:23,687 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:18:23,687 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:18:23,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-29 22:18:23,687 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-29 22:18:23,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:18:23,687 INFO L82 PathProgramCache]: Analyzing trace with hash -995369118, now seen corresponding path program 3 times [2021-08-29 22:18:23,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:18:23,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276713572] [2021-08-29 22:18:23,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:18:23,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:18:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 22:18:23,720 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 22:18:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 22:18:23,794 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 22:18:23,795 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 22:18:23,796 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-08-29 22:18:23,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-08-29 22:18:23,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2021-08-29 22:18:23,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 7 remaining) [2021-08-29 22:18:23,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 7 remaining) [2021-08-29 22:18:23,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 7 remaining) [2021-08-29 22:18:23,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-08-29 22:18:23,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-29 22:18:23,803 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-29 22:18:23,803 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 22:18:23,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 10:18:23 BasicIcfg [2021-08-29 22:18:23,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 22:18:23,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 22:18:23,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 22:18:23,885 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 22:18:23,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:18:06" (3/4) ... [2021-08-29 22:18:23,887 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 22:18:23,954 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 22:18:23,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 22:18:23,955 INFO L158 Benchmark]: Toolchain (without parser) took 18646.69ms. Allocated memory was 56.6MB in the beginning and 316.7MB in the end (delta: 260.0MB). Free memory was 33.7MB in the beginning and 160.7MB in the end (delta: -127.0MB). Peak memory consumption was 136.1MB. Max. memory is 16.1GB. [2021-08-29 22:18:23,955 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 22:18:23,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.32ms. Allocated memory is still 56.6MB. Free memory was 33.5MB in the beginning and 26.2MB in the end (delta: 7.4MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-08-29 22:18:23,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.18ms. Allocated memory is still 56.6MB. Free memory was 26.2MB in the beginning and 38.1MB in the end (delta: -12.0MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2021-08-29 22:18:23,956 INFO L158 Benchmark]: Boogie Preprocessor took 28.04ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 35.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:18:23,956 INFO L158 Benchmark]: RCFGBuilder took 748.85ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 35.8MB in the beginning and 33.9MB in the end (delta: 1.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-08-29 22:18:23,957 INFO L158 Benchmark]: TraceAbstraction took 17262.81ms. Allocated memory was 73.4MB in the beginning and 316.7MB in the end (delta: 243.3MB). Free memory was 33.5MB in the beginning and 177.5MB in the end (delta: -144.0MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2021-08-29 22:18:23,957 INFO L158 Benchmark]: Witness Printer took 69.62ms. Allocated memory is still 316.7MB. Free memory was 177.5MB in the beginning and 160.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-08-29 22:18:23,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 465.32ms. Allocated memory is still 56.6MB. Free memory was 33.5MB in the beginning and 26.2MB in the end (delta: 7.4MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.18ms. Allocated memory is still 56.6MB. Free memory was 26.2MB in the beginning and 38.1MB in the end (delta: -12.0MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.04ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 35.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 748.85ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 35.8MB in the beginning and 33.9MB in the end (delta: 1.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 17262.81ms. Allocated memory was 73.4MB in the beginning and 316.7MB in the end (delta: 243.3MB). Free memory was 33.5MB in the beginning and 177.5MB in the end (delta: -144.0MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. * Witness Printer took 69.62ms. Allocated memory is still 316.7MB. Free memory was 177.5MB in the beginning and 160.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12384.04ms, 135 PlacesBefore, 44 PlacesAfterwards, 124 TransitionsBefore, 31 TransitionsAfterwards, 2682 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 101 TotalNumberOfCompositions, 6268 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3416, positive: 3248, positive conditional: 0, positive unconditional: 3248, negative: 168, negative conditional: 0, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1859, positive: 1798, positive conditional: 0, positive unconditional: 1798, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1859, positive: 1778, positive conditional: 0, positive unconditional: 1778, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 678, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 557, negative conditional: 0, negative unconditional: 557, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3416, positive: 1450, positive conditional: 0, positive unconditional: 1450, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 1859, unknown conditional: 0, unknown unconditional: 1859] , Statistics on independence cache: Total cache size (in pairs): 203, Positive cache size: 176, Positive conditional cache size: 0, Positive unconditional cache size: 176, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p3_EAX = 0; [L714] 0 int a = 0; [L715] 0 _Bool main$tmp_guard0; [L716] 0 _Bool main$tmp_guard1; [L718] 0 int x = 0; [L720] 0 int y = 0; [L722] 0 int z = 0; [L723] 0 _Bool z$flush_delayed; [L724] 0 int z$mem_tmp; [L725] 0 _Bool z$r_buff0_thd0; [L726] 0 _Bool z$r_buff0_thd1; [L727] 0 _Bool z$r_buff0_thd2; [L728] 0 _Bool z$r_buff0_thd3; [L729] 0 _Bool z$r_buff0_thd4; [L730] 0 _Bool z$r_buff1_thd0; [L731] 0 _Bool z$r_buff1_thd1; [L732] 0 _Bool z$r_buff1_thd2; [L733] 0 _Bool z$r_buff1_thd3; [L734] 0 _Bool z$r_buff1_thd4; [L735] 0 _Bool z$read_delayed; [L736] 0 int *z$read_delayed_var; [L737] 0 int z$w_buff0; [L738] 0 _Bool z$w_buff0_used; [L739] 0 int z$w_buff1; [L740] 0 _Bool z$w_buff1_used; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1533; [L835] FCALL, FORK 0 pthread_create(&t1533, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L836] 0 pthread_t t1534; [L837] FCALL, FORK 0 pthread_create(&t1534, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1535; [L839] FCALL, FORK 0 pthread_create(&t1535, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1536; [L841] FCALL, FORK 0 pthread_create(&t1536, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L796] 4 z$w_buff1 = z$w_buff0 [L797] 4 z$w_buff0 = 2 [L798] 4 z$w_buff1_used = z$w_buff0_used [L799] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L801] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L802] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L803] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L804] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L805] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L806] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 2 return 0; [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L756] 1 return 0; [L776] 3 y = 2 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 3 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L812] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L812] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L813] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L813] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L814] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L814] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L815] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L816] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L816] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L783] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L783] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L784] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L784] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L785] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L785] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L786] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L819] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L821] 4 return 0; [L789] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L791] 3 return 0; [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L854] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L855] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L856] 0 z$flush_delayed = weak$$choice2 [L857] 0 z$mem_tmp = z [L858] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L858] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 0) [L866] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L866] 0 z = z$flush_delayed ? z$mem_tmp : z [L867] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 835]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 841]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 158 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 17027.53ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 73.16ms, AutomataDifference: 1472.81ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12522.11ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 577 SdHoareTripleChecker+Valid, 839.22ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 577 mSDsluCounter, 659 SdHoareTripleChecker+Invalid, 692.23ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 705 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 853 IncrementalHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 269 mSDtfsCounter, 853 mSolverCounterSat, 14.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 295.75ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2282occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 753.22ms AutomataMinimizationTime, 16 MinimizatonAttempts, 344 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 70.65ms SsaConstructionTime, 593.57ms SatisfiabilityAnalysisTime, 1120.85ms InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 1571 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 RESULT: Ultimate proved your program to be incorrect! [2021-08-29 22:18:23,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...