./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix043_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix043_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt --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 c65ecaf753542f03caed436b8096b879abe036b5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-dev-4e77c04 [2021-10-13 00:01:35,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:01:35,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:01:36,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:01:36,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:01:36,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:01:36,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:01:36,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:01:36,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:01:36,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:01:36,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:01:36,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:01:36,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:01:36,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:01:36,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:01:36,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:01:36,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:01:36,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:01:36,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:01:36,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:01:36,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:01:36,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:01:36,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:01:36,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:01:36,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:01:36,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:01:36,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:01:36,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:01:36,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:01:36,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:01:36,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:01:36,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:01:36,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:01:36,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:01:36,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:01:36,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:01:36,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:01:36,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:01:36,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:01:36,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:01:36,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:01:36,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:01:36,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:01:36,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:01:36,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:01:36,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:01:36,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:01:36,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:01:36,222 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:01:36,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:01:36,223 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:01:36,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:01:36,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:01:36,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:01:36,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:01:36,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:01:36,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:01:36,226 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:01:36,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:01:36,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:01:36,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:01:36,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:01:36,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:01:36,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:01:36,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:01:36,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:01:36,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:01:36,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:01:36,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:01:36,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:01:36,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:01:36,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:01:36,232 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c65ecaf753542f03caed436b8096b879abe036b5 [2021-10-13 00:01:36,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:01:36,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:01:36,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:01:36,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:01:36,671 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:01:36,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/pthread-wmm/mix043_rmo.opt.i [2021-10-13 00:01:36,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/data/31fe3bfe8/c5265fc9d6dd44a08a5bb091debc46ee/FLAG061620f5a [2021-10-13 00:01:37,482 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:01:37,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/sv-benchmarks/c/pthread-wmm/mix043_rmo.opt.i [2021-10-13 00:01:37,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/data/31fe3bfe8/c5265fc9d6dd44a08a5bb091debc46ee/FLAG061620f5a [2021-10-13 00:01:37,685 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/data/31fe3bfe8/c5265fc9d6dd44a08a5bb091debc46ee [2021-10-13 00:01:37,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:01:37,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:01:37,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:01:37,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:01:37,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:01:37,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:01:37" (1/1) ... [2021-10-13 00:01:37,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352cd178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:37, skipping insertion in model container [2021-10-13 00:01:37,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:01:37" (1/1) ... [2021-10-13 00:01:37,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:01:37,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:01:38,008 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/sv-benchmarks/c/pthread-wmm/mix043_rmo.opt.i[948,961] [2021-10-13 00:01:38,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:01:38,408 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:01:38,425 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/sv-benchmarks/c/pthread-wmm/mix043_rmo.opt.i[948,961] [2021-10-13 00:01:38,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:01:38,549 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:01:38,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38 WrapperNode [2021-10-13 00:01:38,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:01:38,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:01:38,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:01:38,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:01:38,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:01:38,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:01:38,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:01:38,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:01:38,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:01:38,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:01:38,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:01:38,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:01:38,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (1/1) ... [2021-10-13 00:01:38,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:01:38,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:38,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:38,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:01:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:01:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 00:01:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:01:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:01:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-13 00:01:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-13 00:01:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-13 00:01:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-13 00:01:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-13 00:01:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-13 00:01:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-13 00:01:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-13 00:01:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:01:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 00:01:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:01:38,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:01:38,839 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 00:01:41,240 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:01:41,241 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 00:01:41,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:41 BoogieIcfgContainer [2021-10-13 00:01:41,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:01:41,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:01:41,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:01:41,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:01:41,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:01:37" (1/3) ... [2021-10-13 00:01:41,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb6e35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:01:41, skipping insertion in model container [2021-10-13 00:01:41,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:38" (2/3) ... [2021-10-13 00:01:41,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb6e35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:01:41, skipping insertion in model container [2021-10-13 00:01:41,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:41" (3/3) ... [2021-10-13 00:01:41,255 INFO L111 eAbstractionObserver]: Analyzing ICFG mix043_rmo.opt.i [2021-10-13 00:01:41,262 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 00:01:41,263 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:01:41,263 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 00:01:41,263 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 00:01:41,308 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,309 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,309 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,309 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,313 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,313 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,314 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,314 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,314 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,316 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,316 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,316 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,316 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,317 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,317 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,317 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,317 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,323 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,324 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,324 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,325 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,325 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,325 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,325 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,326 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,326 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,326 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,327 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,327 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,327 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,327 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,328 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,328 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,329 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,329 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,329 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,329 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,329 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,330 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,330 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,331 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,331 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,331 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,331 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,332 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,332 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,333 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,333 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,333 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,338 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,339 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,342 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,343 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,343 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,346 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,346 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,346 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,347 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,347 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,347 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,347 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,348 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,348 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,348 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,348 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,349 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,351 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,351 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,352 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,352 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:01:41,354 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 00:01:41,411 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:01:41,419 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:01:41,420 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-13 00:01:41,440 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 00:01:41,453 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 130 transitions, 280 flow [2021-10-13 00:01:41,457 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 130 transitions, 280 flow [2021-10-13 00:01:41,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 280 flow [2021-10-13 00:01:41,556 INFO L129 PetriNetUnfolder]: 2/126 cut-off events. [2021-10-13 00:01:41,557 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 00:01:41,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2021-10-13 00:01:41,569 INFO L116 LiptonReduction]: Number of co-enabled transitions 2878 [2021-10-13 00:02:14,835 INFO L131 LiptonReduction]: Checked pairs total: 7108 [2021-10-13 00:02:14,836 INFO L133 LiptonReduction]: Total number of compositions: 108 [2021-10-13 00:02:14,862 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 32 transitions, 84 flow [2021-10-13 00:02:15,066 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2602 states, 2599 states have (on average 3.841477491342824) internal successors, (9984), 2601 states have internal predecessors, (9984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:15,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 2602 states, 2599 states have (on average 3.841477491342824) internal successors, (9984), 2601 states have internal predecessors, (9984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:15,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 00:02:15,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:15,092 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:15,092 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:15,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1360890327, now seen corresponding path program 1 times [2021-10-13 00:02:15,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:15,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021808511] [2021-10-13 00:02:15,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:15,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:15,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:15,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021808511] [2021-10-13 00:02:15,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021808511] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:15,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:15,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 00:02:15,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76729955] [2021-10-13 00:02:15,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:02:15,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:15,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:02:15,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:15,536 INFO L87 Difference]: Start difference. First operand has 2602 states, 2599 states have (on average 3.841477491342824) internal successors, (9984), 2601 states have internal predecessors, (9984), 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) [2021-10-13 00:02:15,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:15,712 INFO L93 Difference]: Finished difference Result 2202 states and 8344 transitions. [2021-10-13 00:02:15,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:02:15,715 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 [2021-10-13 00:02:15,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:15,790 INFO L225 Difference]: With dead ends: 2202 [2021-10-13 00:02:15,791 INFO L226 Difference]: Without dead ends: 2122 [2021-10-13 00:02:15,792 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:15,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2021-10-13 00:02:16,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2122. [2021-10-13 00:02:16,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 2121 states have (on average 3.8095238095238093) internal successors, (8080), 2121 states have internal predecessors, (8080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:16,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 8080 transitions. [2021-10-13 00:02:16,066 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 8080 transitions. Word has length 9 [2021-10-13 00:02:16,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:16,067 INFO L470 AbstractCegarLoop]: Abstraction has 2122 states and 8080 transitions. [2021-10-13 00:02:16,069 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) [2021-10-13 00:02:16,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 8080 transitions. [2021-10-13 00:02:16,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 00:02:16,073 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:16,073 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:16,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:02:16,075 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:16,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:16,075 INFO L82 PathProgramCache]: Analyzing trace with hash -2145462641, now seen corresponding path program 1 times [2021-10-13 00:02:16,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:16,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387102960] [2021-10-13 00:02:16,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:16,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:16,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:16,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387102960] [2021-10-13 00:02:16,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387102960] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:16,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:16,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 00:02:16,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538941827] [2021-10-13 00:02:16,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:02:16,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:02:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:16,336 INFO L87 Difference]: Start difference. First operand 2122 states and 8080 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) [2021-10-13 00:02:16,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:16,384 INFO L93 Difference]: Finished difference Result 1962 states and 7392 transitions. [2021-10-13 00:02:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:02:16,385 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 [2021-10-13 00:02:16,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:16,412 INFO L225 Difference]: With dead ends: 1962 [2021-10-13 00:02:16,413 INFO L226 Difference]: Without dead ends: 1962 [2021-10-13 00:02:16,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:16,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-13 00:02:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-10-13 00:02:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 3.769505354411015) internal successors, (7392), 1961 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:16,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 7392 transitions. [2021-10-13 00:02:16,541 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 7392 transitions. Word has length 11 [2021-10-13 00:02:16,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:16,541 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 7392 transitions. [2021-10-13 00:02:16,542 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) [2021-10-13 00:02:16,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 7392 transitions. [2021-10-13 00:02:16,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 00:02:16,547 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:16,547 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:16,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:02:16,548 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:16,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:16,549 INFO L82 PathProgramCache]: Analyzing trace with hash -238320702, now seen corresponding path program 1 times [2021-10-13 00:02:16,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:16,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517255400] [2021-10-13 00:02:16,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:16,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:16,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:16,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:16,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517255400] [2021-10-13 00:02:16,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517255400] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:16,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:16,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:02:16,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076423933] [2021-10-13 00:02:16,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:02:16,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:16,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:02:16,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:16,822 INFO L87 Difference]: Start difference. First operand 1962 states and 7392 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) [2021-10-13 00:02:16,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:16,960 INFO L93 Difference]: Finished difference Result 2154 states and 8016 transitions. [2021-10-13 00:02:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:02:16,961 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 [2021-10-13 00:02:16,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:16,990 INFO L225 Difference]: With dead ends: 2154 [2021-10-13 00:02:16,991 INFO L226 Difference]: Without dead ends: 2154 [2021-10-13 00:02:16,991 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.4ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:02:17,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2021-10-13 00:02:17,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 2154. [2021-10-13 00:02:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2154 states, 2153 states have (on average 3.7231769623780773) internal successors, (8016), 2153 states have internal predecessors, (8016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:17,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2154 states to 2154 states and 8016 transitions. [2021-10-13 00:02:17,208 INFO L78 Accepts]: Start accepts. Automaton has 2154 states and 8016 transitions. Word has length 13 [2021-10-13 00:02:17,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:17,208 INFO L470 AbstractCegarLoop]: Abstraction has 2154 states and 8016 transitions. [2021-10-13 00:02:17,209 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) [2021-10-13 00:02:17,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2154 states and 8016 transitions. [2021-10-13 00:02:17,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:02:17,215 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:17,215 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:17,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:02:17,216 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:17,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:17,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1393003807, now seen corresponding path program 1 times [2021-10-13 00:02:17,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:17,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058557870] [2021-10-13 00:02:17,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:17,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:17,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:17,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:17,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058557870] [2021-10-13 00:02:17,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058557870] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:17,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:17,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:02:17,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983618689] [2021-10-13 00:02:17,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:02:17,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:17,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:02:17,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:02:17,441 INFO L87 Difference]: Start difference. First operand 2154 states and 8016 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 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) [2021-10-13 00:02:17,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:17,527 INFO L93 Difference]: Finished difference Result 2262 states and 7675 transitions. [2021-10-13 00:02:17,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:02:17,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 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 [2021-10-13 00:02:17,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:17,551 INFO L225 Difference]: With dead ends: 2262 [2021-10-13 00:02:17,551 INFO L226 Difference]: Without dead ends: 1686 [2021-10-13 00:02:17,553 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-10-13 00:02:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1686. [2021-10-13 00:02:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1685 states have (on average 3.3685459940652818) internal successors, (5676), 1685 states have internal predecessors, (5676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:17,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 5676 transitions. [2021-10-13 00:02:17,646 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 5676 transitions. Word has length 15 [2021-10-13 00:02:17,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:17,646 INFO L470 AbstractCegarLoop]: Abstraction has 1686 states and 5676 transitions. [2021-10-13 00:02:17,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 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) [2021-10-13 00:02:17,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 5676 transitions. [2021-10-13 00:02:17,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 00:02:17,651 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:17,651 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:17,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:02:17,652 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:17,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:17,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1959391320, now seen corresponding path program 1 times [2021-10-13 00:02:17,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:17,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309384551] [2021-10-13 00:02:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:17,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:17,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:17,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:17,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309384551] [2021-10-13 00:02:17,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309384551] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:17,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:17,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:02:17,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907538862] [2021-10-13 00:02:17,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:02:17,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:17,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:02:17,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:17,882 INFO L87 Difference]: Start difference. First operand 1686 states and 5676 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:17,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:17,954 INFO L93 Difference]: Finished difference Result 1464 states and 4522 transitions. [2021-10-13 00:02:17,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:02:17,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 00:02:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:17,968 INFO L225 Difference]: With dead ends: 1464 [2021-10-13 00:02:17,969 INFO L226 Difference]: Without dead ends: 1095 [2021-10-13 00:02:17,969 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:02:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2021-10-13 00:02:18,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1095. [2021-10-13 00:02:18,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1094 states have (on average 3.0274223034734917) internal successors, (3312), 1094 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 3312 transitions. [2021-10-13 00:02:18,024 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 3312 transitions. Word has length 16 [2021-10-13 00:02:18,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:18,024 INFO L470 AbstractCegarLoop]: Abstraction has 1095 states and 3312 transitions. [2021-10-13 00:02:18,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 3312 transitions. [2021-10-13 00:02:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:02:18,029 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:18,029 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:18,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:02:18,030 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:18,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:18,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1874024717, now seen corresponding path program 1 times [2021-10-13 00:02:18,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:18,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526429821] [2021-10-13 00:02:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:18,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:18,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:18,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526429821] [2021-10-13 00:02:18,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526429821] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:18,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:18,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:02:18,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972483219] [2021-10-13 00:02:18,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:02:18,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:18,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:02:18,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:02:18,116 INFO L87 Difference]: Start difference. First operand 1095 states and 3312 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) [2021-10-13 00:02:18,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:18,155 INFO L93 Difference]: Finished difference Result 1446 states and 4283 transitions. [2021-10-13 00:02:18,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:02:18,156 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 [2021-10-13 00:02:18,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:18,167 INFO L225 Difference]: With dead ends: 1446 [2021-10-13 00:02:18,167 INFO L226 Difference]: Without dead ends: 954 [2021-10-13 00:02:18,168 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2021-10-13 00:02:18,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 933. [2021-10-13 00:02:18,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 932 states have (on average 2.8733905579399144) internal successors, (2678), 932 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 2678 transitions. [2021-10-13 00:02:18,218 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 2678 transitions. Word has length 19 [2021-10-13 00:02:18,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:18,219 INFO L470 AbstractCegarLoop]: Abstraction has 933 states and 2678 transitions. [2021-10-13 00:02:18,219 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) [2021-10-13 00:02:18,219 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 2678 transitions. [2021-10-13 00:02:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:02:18,223 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:18,223 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:18,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:02:18,224 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:18,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:18,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1494146624, now seen corresponding path program 1 times [2021-10-13 00:02:18,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:18,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510055003] [2021-10-13 00:02:18,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:18,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:18,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:18,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510055003] [2021-10-13 00:02:18,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510055003] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:18,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:18,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:02:18,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170652302] [2021-10-13 00:02:18,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:02:18,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:18,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:02:18,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:02:18,459 INFO L87 Difference]: Start difference. First operand 933 states and 2678 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) [2021-10-13 00:02:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:18,532 INFO L93 Difference]: Finished difference Result 806 states and 2276 transitions. [2021-10-13 00:02:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:02:18,533 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 [2021-10-13 00:02:18,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:18,541 INFO L225 Difference]: With dead ends: 806 [2021-10-13 00:02:18,541 INFO L226 Difference]: Without dead ends: 704 [2021-10-13 00:02:18,542 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.6ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:02:18,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-10-13 00:02:18,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2021-10-13 00:02:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 703 states have (on average 2.869132290184922) internal successors, (2017), 703 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 2017 transitions. [2021-10-13 00:02:18,576 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 2017 transitions. Word has length 19 [2021-10-13 00:02:18,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:18,576 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 2017 transitions. [2021-10-13 00:02:18,577 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) [2021-10-13 00:02:18,577 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 2017 transitions. [2021-10-13 00:02:18,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:02:18,580 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:18,580 INFO L512 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] [2021-10-13 00:02:18,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:02:18,581 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:18,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:18,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1449217891, now seen corresponding path program 1 times [2021-10-13 00:02:18,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:18,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707136407] [2021-10-13 00:02:18,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:18,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:18,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:18,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:18,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707136407] [2021-10-13 00:02:18,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707136407] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:18,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:18,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:02:18,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409978941] [2021-10-13 00:02:18,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:02:18,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:18,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:02:18,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:02:18,663 INFO L87 Difference]: Start difference. First operand 704 states and 2017 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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) [2021-10-13 00:02:18,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:18,696 INFO L93 Difference]: Finished difference Result 960 states and 2662 transitions. [2021-10-13 00:02:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:02:18,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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 [2021-10-13 00:02:18,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:18,704 INFO L225 Difference]: With dead ends: 960 [2021-10-13 00:02:18,704 INFO L226 Difference]: Without dead ends: 643 [2021-10-13 00:02:18,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:18,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2021-10-13 00:02:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 617. [2021-10-13 00:02:18,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 616 states have (on average 2.6412337662337664) internal successors, (1627), 616 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1627 transitions. [2021-10-13 00:02:18,734 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1627 transitions. Word has length 22 [2021-10-13 00:02:18,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:18,735 INFO L470 AbstractCegarLoop]: Abstraction has 617 states and 1627 transitions. [2021-10-13 00:02:18,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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) [2021-10-13 00:02:18,735 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1627 transitions. [2021-10-13 00:02:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:02:18,738 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:18,738 INFO L512 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] [2021-10-13 00:02:18,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:02:18,739 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:18,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:18,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1975867785, now seen corresponding path program 2 times [2021-10-13 00:02:18,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:18,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165332140] [2021-10-13 00:02:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:18,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:18,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:18,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165332140] [2021-10-13 00:02:18,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165332140] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:18,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:18,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 00:02:18,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089092097] [2021-10-13 00:02:18,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:02:18,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:02:18,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:02:18,871 INFO L87 Difference]: Start difference. First operand 617 states and 1627 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) [2021-10-13 00:02:18,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:18,944 INFO L93 Difference]: Finished difference Result 590 states and 1573 transitions. [2021-10-13 00:02:18,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:02:18,945 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 [2021-10-13 00:02:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:18,948 INFO L225 Difference]: With dead ends: 590 [2021-10-13 00:02:18,949 INFO L226 Difference]: Without dead ends: 208 [2021-10-13 00:02:18,949 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 26.8ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:02:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-13 00:02:18,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 184. [2021-10-13 00:02:18,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 2.480874316939891) internal successors, (454), 183 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 454 transitions. [2021-10-13 00:02:18,960 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 454 transitions. Word has length 22 [2021-10-13 00:02:18,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:18,960 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 454 transitions. [2021-10-13 00:02:18,960 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) [2021-10-13 00:02:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 454 transitions. [2021-10-13 00:02:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:02:18,962 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:18,962 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:18,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:02:18,963 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:18,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:18,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1940480260, now seen corresponding path program 1 times [2021-10-13 00:02:18,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:18,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089102030] [2021-10-13 00:02:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:18,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:19,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:19,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:19,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089102030] [2021-10-13 00:02:19,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089102030] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:19,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:19,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:02:19,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502272120] [2021-10-13 00:02:19,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:02:19,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:19,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:02:19,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:02:19,047 INFO L87 Difference]: Start difference. First operand 184 states and 454 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:19,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:19,069 INFO L93 Difference]: Finished difference Result 234 states and 572 transitions. [2021-10-13 00:02:19,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:02:19,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 00:02:19,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:19,071 INFO L225 Difference]: With dead ends: 234 [2021-10-13 00:02:19,072 INFO L226 Difference]: Without dead ends: 92 [2021-10-13 00:02:19,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:19,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-13 00:02:19,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-10-13 00:02:19,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 2.1758241758241756) internal successors, (198), 91 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 198 transitions. [2021-10-13 00:02:19,077 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 198 transitions. Word has length 26 [2021-10-13 00:02:19,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:19,077 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 198 transitions. [2021-10-13 00:02:19,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:19,078 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 198 transitions. [2021-10-13 00:02:19,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:02:19,079 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:19,079 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:19,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:02:19,080 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:19,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:19,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1245957934, now seen corresponding path program 2 times [2021-10-13 00:02:19,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:19,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561489994] [2021-10-13 00:02:19,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:19,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:19,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:19,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:19,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561489994] [2021-10-13 00:02:19,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561489994] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:19,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:19,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:02:19,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918461680] [2021-10-13 00:02:19,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:02:19,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:19,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:02:19,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:02:19,306 INFO L87 Difference]: Start difference. First operand 92 states and 198 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:19,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:19,415 INFO L93 Difference]: Finished difference Result 118 states and 252 transitions. [2021-10-13 00:02:19,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:02:19,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 00:02:19,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:19,417 INFO L225 Difference]: With dead ends: 118 [2021-10-13 00:02:19,417 INFO L226 Difference]: Without dead ends: 64 [2021-10-13 00:02:19,417 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 94.3ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:02:19,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-13 00:02:19,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-10-13 00:02:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.9365079365079365) internal successors, (122), 63 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:19,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 122 transitions. [2021-10-13 00:02:19,421 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 122 transitions. Word has length 26 [2021-10-13 00:02:19,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:19,421 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 122 transitions. [2021-10-13 00:02:19,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 122 transitions. [2021-10-13 00:02:19,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:02:19,422 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:19,422 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:19,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 00:02:19,423 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 00:02:19,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:19,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1699081006, now seen corresponding path program 3 times [2021-10-13 00:02:19,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:19,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725956106] [2021-10-13 00:02:19,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:19,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:19,494 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:19,621 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:19,621 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:02:19,622 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:02:19,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:02:19,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 00:02:19,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 00:02:19,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 00:02:19,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-13 00:02:19,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:02:19,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 00:02:19,635 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 00:02:19,635 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:02:19,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:02:19 BasicIcfg [2021-10-13 00:02:19,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:02:19,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:02:19,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:02:19,808 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:02:19,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:41" (3/4) ... [2021-10-13 00:02:19,811 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 00:02:20,018 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:02:20,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:02:20,020 INFO L168 Benchmark]: Toolchain (without parser) took 42329.52 ms. Allocated memory was 86.0 MB in the beginning and 188.7 MB in the end (delta: 102.8 MB). Free memory was 45.5 MB in the beginning and 134.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 110.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:20,021 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 63.9 MB in the beginning and 63.9 MB in the end (delta: 35.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:02:20,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.56 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 45.3 MB in the beginning and 65.4 MB in the end (delta: -20.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:20,022 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.25 ms. Allocated memory is still 104.9 MB. Free memory was 65.4 MB in the beginning and 62.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:20,022 INFO L168 Benchmark]: Boogie Preprocessor took 88.47 ms. Allocated memory is still 104.9 MB. Free memory was 62.7 MB in the beginning and 60.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:20,023 INFO L168 Benchmark]: RCFGBuilder took 2524.08 ms. Allocated memory is still 104.9 MB. Free memory was 60.3 MB in the beginning and 51.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:20,023 INFO L168 Benchmark]: TraceAbstraction took 38560.56 ms. Allocated memory was 104.9 MB in the beginning and 188.7 MB in the end (delta: 83.9 MB). Free memory was 51.1 MB in the beginning and 60.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 73.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:20,024 INFO L168 Benchmark]: Witness Printer took 210.86 ms. Allocated memory is still 188.7 MB. Free memory was 60.7 MB in the beginning and 134.3 MB in the end (delta: -73.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:20,027 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 63.9 MB in the beginning and 63.9 MB in the end (delta: 35.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 856.56 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 45.3 MB in the beginning and 65.4 MB in the end (delta: -20.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.25 ms. Allocated memory is still 104.9 MB. Free memory was 65.4 MB in the beginning and 62.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.47 ms. Allocated memory is still 104.9 MB. Free memory was 62.7 MB in the beginning and 60.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2524.08 ms. Allocated memory is still 104.9 MB. Free memory was 60.3 MB in the beginning and 51.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 38560.56 ms. Allocated memory was 104.9 MB in the beginning and 188.7 MB in the end (delta: 83.9 MB). Free memory was 51.1 MB in the beginning and 60.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 73.9 MB. Max. memory is 16.1 GB. * Witness Printer took 210.86 ms. Allocated memory is still 188.7 MB. Free memory was 60.7 MB in the beginning and 134.3 MB in the end (delta: -73.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33379.3ms, 141 PlacesBefore, 45 PlacesAfterwards, 130 TransitionsBefore, 32 TransitionsAfterwards, 2878 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 108 TotalNumberOfCompositions, 7108 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3198, positive: 2992, positive conditional: 0, positive unconditional: 2992, negative: 206, negative conditional: 0, negative unconditional: 206, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1931, positive: 1849, positive conditional: 0, positive unconditional: 1849, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1931, positive: 1843, positive conditional: 0, positive unconditional: 1843, negative: 88, negative conditional: 0, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 88, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1363, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1352, negative conditional: 0, negative unconditional: 1352, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3198, positive: 1143, positive conditional: 0, positive unconditional: 1143, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 1931, unknown conditional: 0, unknown unconditional: 1931] , Statistics on independence cache: Total cache size (in pairs): 204, Positive cache size: 172, Positive conditional cache size: 0, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L730] 0 int z = 0; [L731] 0 _Bool z$flush_delayed; [L732] 0 int z$mem_tmp; [L733] 0 _Bool z$r_buff0_thd0; [L734] 0 _Bool z$r_buff0_thd1; [L735] 0 _Bool z$r_buff0_thd2; [L736] 0 _Bool z$r_buff0_thd3; [L737] 0 _Bool z$r_buff0_thd4; [L738] 0 _Bool z$r_buff1_thd0; [L739] 0 _Bool z$r_buff1_thd1; [L740] 0 _Bool z$r_buff1_thd2; [L741] 0 _Bool z$r_buff1_thd3; [L742] 0 _Bool z$r_buff1_thd4; [L743] 0 _Bool z$read_delayed; [L744] 0 int *z$read_delayed_var; [L745] 0 int z$w_buff0; [L746] 0 _Bool z$w_buff0_used; [L747] 0 int z$w_buff1; [L748] 0 _Bool z$w_buff1_used; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L848] 0 pthread_t t1149; [L849] FCALL, FORK 0 pthread_create(&t1149, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=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] [L850] 0 pthread_t t1150; [L851] FCALL, FORK 0 pthread_create(&t1150, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=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] [L852] 0 pthread_t t1151; [L853] FCALL, FORK 0 pthread_create(&t1151, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=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] [L854] 0 pthread_t t1152; [L855] FCALL, FORK 0 pthread_create(&t1152, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=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] [L804] 4 z$w_buff1 = z$w_buff0 [L805] 4 z$w_buff0 = 2 [L806] 4 z$w_buff1_used = z$w_buff0_used [L807] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L809] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L810] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L811] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L812] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L813] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L814] 4 z$r_buff0_thd4 = (_Bool)1 [L817] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$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] [L820] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=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] [L823] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=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] [L754] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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] [L769] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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] [L772] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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] [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L764] 1 return 0; [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; [L784] 3 y = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, 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] [L787] 3 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, 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] [L826] 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) [L826] 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) [L827] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L827] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L828] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L828] 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 [L829] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L829] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L830] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L830] 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 [L833] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L835] 4 return 0; [L790] 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) [L790] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L790] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L790] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L791] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L791] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L792] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L792] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L793] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L793] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L794] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L794] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L797] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 3 return 0; [L857] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L861] 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) [L861] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L861] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L862] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L862] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L863] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L863] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L864] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L864] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L865] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L865] 0 z$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 [L868] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L869] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L870] 0 z$flush_delayed = weak$$choice2 [L871] 0 z$mem_tmp = z [L872] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L872] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L873] EXPR 0 weak$$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$w_buff0)) [L873] EXPR 0 !z$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) [L873] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L873] 0 z$w_buff0 = weak$$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)) [L874] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L874] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1) [L874] EXPR 0 weak$$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$w_buff1)) [L874] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L875] EXPR 0 weak$$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)) [L875] EXPR 0 !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) [L875] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L875] 0 z$w_buff0_used = weak$$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)) [L876] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L876] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] EXPR 0 weak$$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)) [L877] EXPR 0 !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) [L877] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L877] 0 z$r_buff0_thd0 = weak$$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)) [L878] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L878] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L878] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L878] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L879] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L880] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L880] 0 z = z$flush_delayed ? z$mem_tmp : z [L881] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=0, x=1, y=1, 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: 853]: 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: 849]: 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: 855]: 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: 851]: 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, 166 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 38222.2ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 60.2ms, AutomataDifference: 1146.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 33646.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 376 SDtfs, 488 SDslu, 553 SDs, 0 SdLazy, 198 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 336.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 253.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2602occurred in iteration=0, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 877.2ms AutomataMinimizationTime, 11 MinimizatonAttempts, 71 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 73.0ms SsaConstructionTime, 712.8ms SatisfiabilityAnalysisTime, 1192.6ms InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 867 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2021-10-13 00:02:20,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eae3c1d-c4c4-42d6-b1c1-2350ad822bea/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...