./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH --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 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:25:44,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:25:44,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:25:44,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:25:44,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:25:44,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:25:44,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:25:44,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:25:44,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:25:44,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:25:44,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:25:44,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:25:44,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:25:44,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:25:44,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:25:44,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:25:44,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:25:44,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:25:44,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:25:44,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:25:44,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:25:44,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:25:44,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:25:44,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:25:44,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:25:44,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:25:44,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:25:44,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:25:44,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:25:44,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:25:44,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:25:44,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:25:44,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:25:44,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:25:44,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:25:44,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:25:44,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:25:44,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:25:44,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:25:44,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:25:44,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:25:44,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:25:44,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:25:44,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:25:44,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:25:44,187 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:25:44,187 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:25:44,187 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:25:44,188 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:25:44,188 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:25:44,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:25:44,188 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:25:44,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:25:44,189 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:25:44,190 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:25:44,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:25:44,190 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:25:44,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:25:44,191 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:25:44,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:25:44,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:25:44,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:25:44,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:25:44,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:25:44,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:25:44,192 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:25:44,193 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:25:44,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:25:44,193 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:25:44,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:25:44,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:25:44,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:25:44,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:25:44,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:25:44,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:25:44,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:25:44,196 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:25:44,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:25:44,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:25:44,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:25:44,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:25:44,197 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_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 [2021-11-03 05:25:44,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:25:44,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:25:44,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:25:44,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:25:44,494 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:25:44,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2021-11-03 05:25:44,566 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/data/792288101/924887da0ffa4bc6bc3c4ec667088d5f/FLAG247b4a529 [2021-11-03 05:25:45,046 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:25:45,047 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2021-11-03 05:25:45,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/data/792288101/924887da0ffa4bc6bc3c4ec667088d5f/FLAG247b4a529 [2021-11-03 05:25:45,409 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/data/792288101/924887da0ffa4bc6bc3c4ec667088d5f [2021-11-03 05:25:45,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:25:45,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:25:45,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:25:45,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:25:45,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:25:45,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23680a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45, skipping insertion in model container [2021-11-03 05:25:45,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:25:45,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:25:45,769 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_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2021-11-03 05:25:45,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:25:45,781 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:25:45,870 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_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2021-11-03 05:25:45,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:25:45,894 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:25:45,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45 WrapperNode [2021-11-03 05:25:45,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:25:45,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:25:45,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:25:45,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:25:45,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:25:45,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:25:45,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:25:45,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:25:45,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:45,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:46,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:25:46,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:25:46,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:25:46,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:25:46,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (1/1) ... [2021-11-03 05:25:46,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:25:46,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:25:46,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:25:46,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cb1cbc-951f-48c9-816a-2ed8fa80288d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:25:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-03 05:25:46,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-03 05:25:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-03 05:25:46,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-03 05:25:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-03 05:25:46,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-03 05:25:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-03 05:25:46,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-03 05:25:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:25:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:25:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:25:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-03 05:25:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-03 05:25:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:25:46,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:25:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 05:25:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:25:46,115 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 05:25:47,287 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:25:47,288 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-11-03 05:25:47,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:25:47 BoogieIcfgContainer [2021-11-03 05:25:47,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:25:47,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:25:47,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:25:47,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:25:47,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:25:45" (1/3) ... [2021-11-03 05:25:47,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648cf837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:25:47, skipping insertion in model container [2021-11-03 05:25:47,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:25:45" (2/3) ... [2021-11-03 05:25:47,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648cf837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:25:47, skipping insertion in model container [2021-11-03 05:25:47,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:25:47" (3/3) ... [2021-11-03 05:25:47,299 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2021-11-03 05:25:47,308 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 05:25:47,308 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:25:47,308 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:25:47,309 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 05:25:47,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,357 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,357 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,358 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,358 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,359 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,360 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,360 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,361 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,361 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,362 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,362 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,362 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,362 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,363 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,363 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,364 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,365 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,365 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,365 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,365 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,366 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,366 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,366 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,366 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,367 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,367 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,367 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,367 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,368 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,368 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,368 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,368 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,368 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,369 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,370 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,370 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,370 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,372 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,372 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,372 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,372 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,373 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,389 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,390 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,390 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,392 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,392 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,393 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,393 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,394 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,397 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,397 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,397 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,397 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,398 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,398 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,398 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,399 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,399 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,405 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,405 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,405 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,405 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,406 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,406 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,406 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,406 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,407 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,407 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,407 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,408 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,408 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,408 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,408 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,409 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,409 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,409 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,410 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,410 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,410 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,410 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,413 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,414 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,414 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,414 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,414 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,415 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,415 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,415 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,415 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,416 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,416 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,416 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,416 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,416 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,417 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,417 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,417 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,417 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,418 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,418 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,418 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,418 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,418 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,419 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,419 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,419 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,419 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,420 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,420 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,420 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,420 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,420 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,421 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,422 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,422 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,422 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,427 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,429 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,429 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,430 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,431 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,433 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,434 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,434 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,436 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,436 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,436 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,436 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,436 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,437 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,437 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,437 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,440 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:25:47,450 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-03 05:25:47,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:25:47,516 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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 [2021-11-03 05:25:47,516 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 05:25:47,536 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 05:25:47,545 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 194 transitions, 420 flow [2021-11-03 05:25:47,552 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 194 transitions, 420 flow [2021-11-03 05:25:47,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 205 places, 194 transitions, 420 flow [2021-11-03 05:25:47,676 INFO L129 PetriNetUnfolder]: 2/190 cut-off events. [2021-11-03 05:25:47,676 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-03 05:25:47,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 190 events. 2/190 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 208 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2021-11-03 05:25:47,689 INFO L116 LiptonReduction]: Number of co-enabled transitions 5712 [2021-11-03 05:25:56,095 INFO L131 LiptonReduction]: Checked pairs total: 48015 [2021-11-03 05:25:56,096 INFO L133 LiptonReduction]: Total number of compositions: 125 [2021-11-03 05:25:56,103 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 74 transitions, 180 flow [2021-11-03 05:25:59,955 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 88652 states, 88651 states have (on average 4.1476802292134325) internal successors, (367696), 88651 states have internal predecessors, (367696), 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) [2021-11-03 05:26:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 88652 states, 88651 states have (on average 4.1476802292134325) internal successors, (367696), 88651 states have internal predecessors, (367696), 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) [2021-11-03 05:26:01,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 05:26:01,630 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:01,631 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:01,631 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-03 05:26:01,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:01,639 INFO L85 PathProgramCache]: Analyzing trace with hash 180726211, now seen corresponding path program 1 times [2021-11-03 05:26:01,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:01,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050614452] [2021-11-03 05:26:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:01,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:02,571 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:02,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050614452] [2021-11-03 05:26:02,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050614452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:02,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:02,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-03 05:26:02,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152637416] [2021-11-03 05:26:02,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 05:26:02,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:02,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 05:26:02,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:26:02,698 INFO L87 Difference]: Start difference. First operand has 88652 states, 88651 states have (on average 4.1476802292134325) internal successors, (367696), 88651 states have internal predecessors, (367696), 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 11 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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) [2021-11-03 05:26:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:04,913 INFO L93 Difference]: Finished difference Result 110307 states and 441173 transitions. [2021-11-03 05:26:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 05:26:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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 69 [2021-11-03 05:26:04,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:06,393 INFO L225 Difference]: With dead ends: 110307 [2021-11-03 05:26:06,394 INFO L226 Difference]: Without dead ends: 109870 [2021-11-03 05:26:06,395 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-11-03 05:26:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109870 states. [2021-11-03 05:26:11,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109870 to 91378. [2021-11-03 05:26:11,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91378 states, 91377 states have (on average 4.128413057990523) internal successors, (377242), 91377 states have internal predecessors, (377242), 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) [2021-11-03 05:26:12,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91378 states to 91378 states and 377242 transitions. [2021-11-03 05:26:12,927 INFO L78 Accepts]: Start accepts. Automaton has 91378 states and 377242 transitions. Word has length 69 [2021-11-03 05:26:12,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:12,928 INFO L470 AbstractCegarLoop]: Abstraction has 91378 states and 377242 transitions. [2021-11-03 05:26:12,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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) [2021-11-03 05:26:12,929 INFO L276 IsEmpty]: Start isEmpty. Operand 91378 states and 377242 transitions. [2021-11-03 05:26:13,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 05:26:13,315 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:13,315 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:13,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:26:13,316 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-03 05:26:13,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:13,317 INFO L85 PathProgramCache]: Analyzing trace with hash -54131597, now seen corresponding path program 2 times [2021-11-03 05:26:13,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:13,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339743809] [2021-11-03 05:26:13,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:13,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:14,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:14,086 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:14,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339743809] [2021-11-03 05:26:14,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339743809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:14,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:14,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-03 05:26:14,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852055254] [2021-11-03 05:26:14,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:26:14,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:14,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:26:14,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:26:14,100 INFO L87 Difference]: Start difference. First operand 91378 states and 377242 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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) [2021-11-03 05:26:18,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:18,595 INFO L93 Difference]: Finished difference Result 260826 states and 1068974 transitions. [2021-11-03 05:26:18,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 05:26:18,595 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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 69 [2021-11-03 05:26:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:21,001 INFO L225 Difference]: With dead ends: 260826 [2021-11-03 05:26:21,002 INFO L226 Difference]: Without dead ends: 260106 [2021-11-03 05:26:21,002 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2021-11-03 05:26:21,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260106 states. [2021-11-03 05:26:26,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260106 to 108602. [2021-11-03 05:26:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108602 states, 108601 states have (on average 4.107015589175053) internal successors, (446026), 108601 states have internal predecessors, (446026), 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) [2021-11-03 05:26:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108602 states to 108602 states and 446026 transitions. [2021-11-03 05:26:28,569 INFO L78 Accepts]: Start accepts. Automaton has 108602 states and 446026 transitions. Word has length 69 [2021-11-03 05:26:28,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:28,572 INFO L470 AbstractCegarLoop]: Abstraction has 108602 states and 446026 transitions. [2021-11-03 05:26:28,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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) [2021-11-03 05:26:28,573 INFO L276 IsEmpty]: Start isEmpty. Operand 108602 states and 446026 transitions. [2021-11-03 05:26:28,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 05:26:28,974 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:28,974 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:28,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 05:26:28,975 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-03 05:26:28,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:28,975 INFO L85 PathProgramCache]: Analyzing trace with hash -648643689, now seen corresponding path program 3 times [2021-11-03 05:26:28,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:28,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600857350] [2021-11-03 05:26:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:28,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:29,299 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:29,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600857350] [2021-11-03 05:26:29,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600857350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:29,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:29,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-03 05:26:29,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045523842] [2021-11-03 05:26:29,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:26:29,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:29,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:26:29,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:26:29,308 INFO L87 Difference]: Start difference. First operand 108602 states and 446026 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 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) [2021-11-03 05:26:31,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:31,182 INFO L93 Difference]: Finished difference Result 112418 states and 462094 transitions. [2021-11-03 05:26:31,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:26:31,182 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 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 69 [2021-11-03 05:26:31,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:31,963 INFO L225 Difference]: With dead ends: 112418 [2021-11-03 05:26:31,963 INFO L226 Difference]: Without dead ends: 112418 [2021-11-03 05:26:31,964 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:26:32,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112418 states. [2021-11-03 05:26:35,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112418 to 110834. [2021-11-03 05:26:35,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110834 states, 110833 states have (on average 4.1084334088222825) internal successors, (455350), 110833 states have internal predecessors, (455350), 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) [2021-11-03 05:26:37,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110834 states to 110834 states and 455350 transitions. [2021-11-03 05:26:37,297 INFO L78 Accepts]: Start accepts. Automaton has 110834 states and 455350 transitions. Word has length 69 [2021-11-03 05:26:37,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:37,298 INFO L470 AbstractCegarLoop]: Abstraction has 110834 states and 455350 transitions. [2021-11-03 05:26:37,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 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) [2021-11-03 05:26:37,298 INFO L276 IsEmpty]: Start isEmpty. Operand 110834 states and 455350 transitions. [2021-11-03 05:26:37,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 05:26:37,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:37,615 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:37,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 05:26:37,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-03 05:26:37,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:37,617 INFO L85 PathProgramCache]: Analyzing trace with hash -542967049, now seen corresponding path program 4 times [2021-11-03 05:26:37,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:37,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562291326] [2021-11-03 05:26:37,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:37,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:37,962 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:37,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562291326] [2021-11-03 05:26:37,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562291326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:37,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:37,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-03 05:26:37,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024198816] [2021-11-03 05:26:37,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:26:37,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:37,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:26:37,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:26:37,965 INFO L87 Difference]: Start difference. First operand 110834 states and 455350 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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)