./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40726c084894b56244394ee4e9c022e5f5fa9f76 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:36:55,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:36:55,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:36:55,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:36:55,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:36:55,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:36:55,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:36:55,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:36:55,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:36:55,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:36:55,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:36:55,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:36:55,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:36:55,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:36:55,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:36:55,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:36:56,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:36:56,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:36:56,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:36:56,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:36:56,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:36:56,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:36:56,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:36:56,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:36:56,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:36:56,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:36:56,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:36:56,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:36:56,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:36:56,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:36:56,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:36:56,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:36:56,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:36:56,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:36:56,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:36:56,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:36:56,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:36:56,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:36:56,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:36:56,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:36:56,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:36:56,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:36:56,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:36:56,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:36:56,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:36:56,085 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:36:56,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:36:56,086 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:36:56,086 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:36:56,086 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:36:56,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:36:56,087 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:36:56,088 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:36:56,088 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:36:56,088 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:36:56,088 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:36:56,089 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:36:56,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:36:56,090 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:36:56,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:36:56,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:36:56,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:36:56,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:36:56,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:36:56,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:36:56,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:36:56,092 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:36:56,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:36:56,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:36:56,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:36:56,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:36:56,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:36:56,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:36:56,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:36:56,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:36:56,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:36:56,095 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:36:56,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:36:56,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:36:56,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:36:56,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:36:56,097 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40726c084894b56244394ee4e9c022e5f5fa9f76 [2021-10-16 02:36:56,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:36:56,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:36:56,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:36:56,421 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:36:56,422 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:36:56,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2021-10-16 02:36:56,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/data/0f6b8dabe/084783c40d7d4b1abd80495fe2669a67/FLAGbc23d9ef9 [2021-10-16 02:36:56,968 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:36:56,969 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2021-10-16 02:36:56,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/data/0f6b8dabe/084783c40d7d4b1abd80495fe2669a67/FLAGbc23d9ef9 [2021-10-16 02:36:57,343 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/data/0f6b8dabe/084783c40d7d4b1abd80495fe2669a67 [2021-10-16 02:36:57,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:36:57,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:36:57,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:36:57,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:36:57,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:36:57,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f085d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57, skipping insertion in model container [2021-10-16 02:36:57,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:36:57,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:36:57,594 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_5f5f4105-d174-47fb-ac22-d736479b66db/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2021-10-16 02:36:57,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:36:57,617 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:36:57,650 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_5f5f4105-d174-47fb-ac22-d736479b66db/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2021-10-16 02:36:57,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:36:57,668 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:36:57,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57 WrapperNode [2021-10-16 02:36:57,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:36:57,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:36:57,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:36:57,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:36:57,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:36:57,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:36:57,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:36:57,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:36:57,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:36:57,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:36:57,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:36:57,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:36:57,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (1/1) ... [2021-10-16 02:36:57,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:36:57,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:36:57,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:36:57,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:36:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 02:36:57,891 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 02:36:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-16 02:36:57,898 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-16 02:36:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-16 02:36:57,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-16 02:36:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:36:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:36:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:36:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 02:36:57,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 02:36:57,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:36:57,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:36:57,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:36:57,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:36:57,903 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 02:37:00,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:37:00,015 INFO L299 CfgBuilder]: Removed 80 assume(true) statements. [2021-10-16 02:37:00,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:37:00 BoogieIcfgContainer [2021-10-16 02:37:00,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:37:00,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:37:00,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:37:00,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:37:00,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:36:57" (1/3) ... [2021-10-16 02:37:00,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d074daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:37:00, skipping insertion in model container [2021-10-16 02:37:00,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:57" (2/3) ... [2021-10-16 02:37:00,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d074daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:37:00, skipping insertion in model container [2021-10-16 02:37:00,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:37:00" (3/3) ... [2021-10-16 02:37:00,029 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2021-10-16 02:37:00,038 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 02:37:00,038 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:37:00,038 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:37:00,038 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 02:37:00,083 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,084 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,084 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,084 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,084 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,084 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,085 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,085 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,085 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,085 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,085 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,085 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,086 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,086 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,086 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,086 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,087 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,089 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,089 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,089 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,090 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,091 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,092 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,097 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,097 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,097 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,097 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,098 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,100 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,100 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,100 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,103 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,104 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,105 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,105 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,106 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,106 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,106 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,110 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,110 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,110 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,111 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,112 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,114 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,115 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,115 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,116 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,116 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,117 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,117 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,117 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,117 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,125 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,126 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,126 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,126 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,126 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,128 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,129 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,129 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,130 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,130 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,130 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,131 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,131 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,131 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,131 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,131 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,131 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,131 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,131 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,132 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,132 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,132 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,133 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,134 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,134 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,134 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,140 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,140 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,140 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,140 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,140 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,141 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,141 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,141 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,141 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,142 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,142 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,142 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,142 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,142 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,142 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,143 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,144 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,144 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,145 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,145 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,145 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,145 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,145 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,145 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,146 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,146 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,146 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,146 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,146 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,146 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,147 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,147 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,148 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,149 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,149 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,149 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,150 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,150 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,151 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,151 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,152 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,152 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,152 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,152 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,152 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,152 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,153 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,153 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:37:00,194 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-16 02:37:00,240 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:37:00,245 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 [2021-10-16 02:37:00,246 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 02:37:00,261 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 02:37:00,271 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 125 transitions, 274 flow [2021-10-16 02:37:00,274 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 125 transitions, 274 flow [2021-10-16 02:37:00,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 125 transitions, 274 flow [2021-10-16 02:37:00,332 INFO L129 PetriNetUnfolder]: 2/122 cut-off events. [2021-10-16 02:37:00,332 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-16 02:37:00,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 122 events. 2/122 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2021-10-16 02:37:00,337 INFO L116 LiptonReduction]: Number of co-enabled transitions 270 [2021-10-16 02:37:12,444 INFO L131 LiptonReduction]: Checked pairs total: 439 [2021-10-16 02:37:12,444 INFO L133 LiptonReduction]: Total number of compositions: 112 [2021-10-16 02:37:12,452 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2021-10-16 02:37:12,463 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:12,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:12,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:37:12,469 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:37:12,469 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:37:12,470 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:37:12,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:37:12,474 INFO L82 PathProgramCache]: Analyzing trace with hash 667743127, now seen corresponding path program 1 times [2021-10-16 02:37:12,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:37:12,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305742622] [2021-10-16 02:37:12,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:37:12,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:37:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:37:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:37:16,111 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:37:16,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305742622] [2021-10-16 02:37:16,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305742622] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:37:16,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:37:16,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:37:16,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608765113] [2021-10-16 02:37:16,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:37:16,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:37:16,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:37:16,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:37:16,143 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:16,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:37:16,768 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2021-10-16 02:37:16,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:37:16,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-16 02:37:16,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:37:16,784 INFO L225 Difference]: With dead ends: 61 [2021-10-16 02:37:16,785 INFO L226 Difference]: Without dead ends: 52 [2021-10-16 02:37:16,787 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 789.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:37:16,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-16 02:37:16,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2021-10-16 02:37:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.813953488372093) internal successors, (78), 43 states have internal predecessors, (78), 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) [2021-10-16 02:37:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 78 transitions. [2021-10-16 02:37:16,827 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 78 transitions. Word has length 16 [2021-10-16 02:37:16,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:37:16,829 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 78 transitions. [2021-10-16 02:37:16,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 78 transitions. [2021-10-16 02:37:16,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:37:16,831 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:37:16,831 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:37:16,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:37:16,832 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:37:16,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:37:16,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1425638971, now seen corresponding path program 2 times [2021-10-16 02:37:16,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:37:16,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743095862] [2021-10-16 02:37:16,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:37:16,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:37:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:37:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:37:18,559 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:37:18,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743095862] [2021-10-16 02:37:18,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743095862] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:37:18,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:37:18,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:37:18,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464495663] [2021-10-16 02:37:18,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:37:18,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:37:18,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:37:18,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:37:18,563 INFO L87 Difference]: Start difference. First operand 44 states and 78 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:18,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:37:18,973 INFO L93 Difference]: Finished difference Result 67 states and 104 transitions. [2021-10-16 02:37:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:37:18,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-16 02:37:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:37:18,974 INFO L225 Difference]: With dead ends: 67 [2021-10-16 02:37:18,975 INFO L226 Difference]: Without dead ends: 48 [2021-10-16 02:37:18,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 630.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:37:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-16 02:37:18,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2021-10-16 02:37:18,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 39 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:18,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 67 transitions. [2021-10-16 02:37:18,981 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 67 transitions. Word has length 16 [2021-10-16 02:37:18,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:37:18,981 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 67 transitions. [2021-10-16 02:37:18,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:18,982 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2021-10-16 02:37:18,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:37:18,982 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:37:18,983 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:37:18,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:37:18,983 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:37:18,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:37:18,983 INFO L82 PathProgramCache]: Analyzing trace with hash -878893701, now seen corresponding path program 3 times [2021-10-16 02:37:18,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:37:18,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806293550] [2021-10-16 02:37:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:37:18,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:37:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:37:19,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:37:19,821 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:37:19,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806293550] [2021-10-16 02:37:19,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806293550] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:37:19,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:37:19,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:37:19,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857568934] [2021-10-16 02:37:19,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:37:19,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:37:19,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:37:19,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:37:19,829 INFO L87 Difference]: Start difference. First operand 40 states and 67 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:37:20,083 INFO L93 Difference]: Finished difference Result 55 states and 80 transitions. [2021-10-16 02:37:20,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:37:20,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-16 02:37:20,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:37:20,084 INFO L225 Difference]: With dead ends: 55 [2021-10-16 02:37:20,084 INFO L226 Difference]: Without dead ends: 46 [2021-10-16 02:37:20,085 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 295.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:37:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-16 02:37:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2021-10-16 02:37:20,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 37 states have internal predecessors, (62), 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) [2021-10-16 02:37:20,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2021-10-16 02:37:20,089 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 16 [2021-10-16 02:37:20,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:37:20,090 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2021-10-16 02:37:20,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:20,090 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2021-10-16 02:37:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:37:20,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:37:20,091 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:37:20,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:37:20,091 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:37:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:37:20,092 INFO L82 PathProgramCache]: Analyzing trace with hash -587539633, now seen corresponding path program 4 times [2021-10-16 02:37:20,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:37:20,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169918597] [2021-10-16 02:37:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:37:20,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:37:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:37:24,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:37:24,700 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:37:24,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169918597] [2021-10-16 02:37:24,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169918597] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:37:24,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:37:24,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:37:24,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016806347] [2021-10-16 02:37:24,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:37:24,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:37:24,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:37:24,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:37:24,702 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:25,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:37:25,359 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2021-10-16 02:37:25,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:37:25,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-16 02:37:25,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:37:25,361 INFO L225 Difference]: With dead ends: 49 [2021-10-16 02:37:25,361 INFO L226 Difference]: Without dead ends: 36 [2021-10-16 02:37:25,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1116.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:37:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-16 02:37:25,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-16 02:37:25,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-10-16 02:37:25,365 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16 [2021-10-16 02:37:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:37:25,366 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-10-16 02:37:25,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-10-16 02:37:25,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:37:25,367 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:37:25,367 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:37:25,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 02:37:25,367 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:37:25,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:37:25,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1232128987, now seen corresponding path program 5 times [2021-10-16 02:37:25,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:37:25,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68635091] [2021-10-16 02:37:25,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:37:25,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:37:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:37:26,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:37:26,379 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:37:26,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68635091] [2021-10-16 02:37:26,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68635091] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:37:26,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:37:26,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:37:26,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495799101] [2021-10-16 02:37:26,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:37:26,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:37:26,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:37:26,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:37:26,381 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:26,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:37:26,583 INFO L93 Difference]: Finished difference Result 43 states and 63 transitions. [2021-10-16 02:37:26,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:37:26,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-16 02:37:26,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:37:26,584 INFO L225 Difference]: With dead ends: 43 [2021-10-16 02:37:26,584 INFO L226 Difference]: Without dead ends: 28 [2021-10-16 02:37:26,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 335.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:37:26,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-16 02:37:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-16 02:37:26,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 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) [2021-10-16 02:37:26,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-10-16 02:37:26,587 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 16 [2021-10-16 02:37:26,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:37:26,588 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-10-16 02:37:26,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-10-16 02:37:26,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:37:26,589 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:37:26,589 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:37:26,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 02:37:26,590 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:37:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:37:26,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1048360895, now seen corresponding path program 6 times [2021-10-16 02:37:26,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:37:26,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525444989] [2021-10-16 02:37:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:37:26,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:37:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:37:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:37:28,225 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:37:28,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525444989] [2021-10-16 02:37:28,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525444989] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:37:28,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:37:28,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:37:28,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452242588] [2021-10-16 02:37:28,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:37:28,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:37:28,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:37:28,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:37:28,228 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:28,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:37:28,516 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2021-10-16 02:37:28,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:37:28,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-16 02:37:28,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:37:28,516 INFO L225 Difference]: With dead ends: 27 [2021-10-16 02:37:28,516 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:37:28,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 474.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:37:28,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:37:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:37:28,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:37:28,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-16 02:37:28,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:37:28,518 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:37:28,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:37:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:37:28,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:37:28,521 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:37:28,521 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 02:37:28,521 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 02:37:28,521 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-16 02:37:28,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 02:37:28,527 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 02:37:28,528 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:37:28,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:37:28 BasicIcfg [2021-10-16 02:37:28,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:37:28,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:37:28,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:37:28,531 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:37:28,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:37:00" (3/4) ... [2021-10-16 02:37:28,535 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:37:28,541 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-16 02:37:28,541 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-16 02:37:28,541 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-16 02:37:28,547 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-16 02:37:28,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:37:28,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:37:28,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:37:28,612 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:37:28,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:37:28,614 INFO L168 Benchmark]: Toolchain (without parser) took 31265.18 ms. Allocated memory was 96.5 MB in the beginning and 371.2 MB in the end (delta: 274.7 MB). Free memory was 55.2 MB in the beginning and 235.7 MB in the end (delta: -180.4 MB). Peak memory consumption was 94.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:37:28,614 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:37:28,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.54 ms. Allocated memory is still 96.5 MB. Free memory was 55.0 MB in the beginning and 70.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:37:28,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.39 ms. Allocated memory is still 96.5 MB. Free memory was 70.7 MB in the beginning and 67.8 MB in the end (delta: 3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:37:28,616 INFO L168 Benchmark]: Boogie Preprocessor took 49.76 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 65.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:37:28,616 INFO L168 Benchmark]: RCFGBuilder took 2214.65 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.7 MB in the beginning and 56.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:37:28,616 INFO L168 Benchmark]: TraceAbstraction took 28508.68 ms. Allocated memory was 117.4 MB in the beginning and 371.2 MB in the end (delta: 253.8 MB). Free memory was 55.4 MB in the beginning and 239.8 MB in the end (delta: -184.4 MB). Peak memory consumption was 68.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:37:28,617 INFO L168 Benchmark]: Witness Printer took 80.86 ms. Allocated memory is still 371.2 MB. Free memory was 239.8 MB in the beginning and 235.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:37:28,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.54 ms. Allocated memory is still 96.5 MB. Free memory was 55.0 MB in the beginning and 70.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.39 ms. Allocated memory is still 96.5 MB. Free memory was 70.7 MB in the beginning and 67.8 MB in the end (delta: 3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.76 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 65.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2214.65 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.7 MB in the beginning and 56.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28508.68 ms. Allocated memory was 117.4 MB in the beginning and 371.2 MB in the end (delta: 253.8 MB). Free memory was 55.4 MB in the beginning and 239.8 MB in the end (delta: -184.4 MB). Peak memory consumption was 68.6 MB. Max. memory is 16.1 GB. * Witness Printer took 80.86 ms. Allocated memory is still 371.2 MB. Free memory was 239.8 MB in the beginning and 235.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12170.6ms, 133 PlacesBefore, 30 PlacesAfterwards, 125 TransitionsBefore, 20 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 7 FixpointIterations, 87 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 112 TotalNumberOfCompositions, 439 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 439, positive: 439, positive conditional: 0, positive unconditional: 439, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 213, positive: 213, positive conditional: 0, positive unconditional: 213, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 213, positive: 213, positive conditional: 0, positive unconditional: 213, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 439, positive: 226, positive conditional: 0, positive unconditional: 226, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 213, unknown conditional: 0, unknown unconditional: 213] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 101]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 139 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 28286.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 10.5ms, AutomataDifference: 2491.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12217.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 148 SDtfs, 190 SDslu, 205 SDs, 0 SdLazy, 93 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 297.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3641.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 43.6ms AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.4ms SsaConstructionTime, 2057.8ms SatisfiabilityAnalysisTime, 11229.9ms InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 4339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-16 02:37:28,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5f4105-d174-47fb-ac22-d736479b66db/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...