./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/01b_inc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/01b_inc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7 --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 a50cd99e32ae608752174b749acce795b64973c8c13edb78d7146b3ab3630fc9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:01:20,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:01:20,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:01:20,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:01:20,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:01:20,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:01:20,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:01:20,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:01:20,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:01:20,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:01:20,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:01:20,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:01:20,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:01:20,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:01:20,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:01:20,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:01:20,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:01:20,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:01:20,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:01:20,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:01:20,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:01:20,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:01:20,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:01:20,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:01:20,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:01:20,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:01:20,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:01:20,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:01:20,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:01:20,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:01:20,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:01:20,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:01:20,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:01:20,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:01:20,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:01:20,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:01:20,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:01:20,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:01:20,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:01:20,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:01:20,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:01:20,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:01:20,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:01:20,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:01:20,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:01:20,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:01:20,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:01:20,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:01:20,598 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:01:20,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:01:20,598 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:01:20,598 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:01:20,599 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:01:20,599 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:01:20,599 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:01:20,600 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:01:20,600 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:01:20,600 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:01:20,600 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:01:20,600 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:01:20,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:01:20,601 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:01:20,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:01:20,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:01:20,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:01:20,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:01:20,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:01:20,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:01:20,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:01:20,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:01:20,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:01:20,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:01:20,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:01:20,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:01:20,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:01:20,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:01:20,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:01:20,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:01:20,613 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:01:20,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:01:20,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:01:20,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:01:20,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:01:20,614 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_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a50cd99e32ae608752174b749acce795b64973c8c13edb78d7146b3ab3630fc9 [2021-11-25 19:01:20,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:01:20,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:01:20,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:01:20,883 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:01:20,883 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:01:20,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/pthread-ext/01b_inc.i [2021-11-25 19:01:20,965 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/data/f6c80e5bc/7e64b8fec46c43d495d3be2a81861104/FLAGe297564b8 [2021-11-25 19:01:21,550 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:01:21,551 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/sv-benchmarks/c/pthread-ext/01b_inc.i [2021-11-25 19:01:21,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/data/f6c80e5bc/7e64b8fec46c43d495d3be2a81861104/FLAGe297564b8 [2021-11-25 19:01:21,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/data/f6c80e5bc/7e64b8fec46c43d495d3be2a81861104 [2021-11-25 19:01:21,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:01:21,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:01:21,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:01:21,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:01:21,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:01:21,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:01:21" (1/1) ... [2021-11-25 19:01:21,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a267955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:21, skipping insertion in model container [2021-11-25 19:01:21,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:01:21" (1/1) ... [2021-11-25 19:01:21,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:01:21,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:01:22,103 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-25 19:01:22,335 WARN L230 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_eb8455f8-2327-4473-bd17-aa09c286baa3/sv-benchmarks/c/pthread-ext/01b_inc.i[31005,31018] [2021-11-25 19:01:22,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:01:22,355 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:01:22,384 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-25 19:01:22,411 WARN L230 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_eb8455f8-2327-4473-bd17-aa09c286baa3/sv-benchmarks/c/pthread-ext/01b_inc.i[31005,31018] [2021-11-25 19:01:22,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:01:22,469 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:01:22,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22 WrapperNode [2021-11-25 19:01:22,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:01:22,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:01:22,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:01:22,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:01:22,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,552 INFO L137 Inliner]: procedures = 173, calls = 20, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 62 [2021-11-25 19:01:22,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:01:22,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:01:22,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:01:22,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:01:22,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:01:22,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:01:22,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:01:22,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:01:22,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (1/1) ... [2021-11-25 19:01:22,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:01:22,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:01:22,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:01:22,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:01:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-25 19:01:22,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-25 19:01:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:01:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-25 19:01:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:01:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:01:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:01:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:01:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-25 19:01:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:01:22,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:01:22,703 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 19:01:22,858 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:01:22,860 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:01:23,093 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:01:23,137 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:01:23,137 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 19:01:23,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:01:23 BoogieIcfgContainer [2021-11-25 19:01:23,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:01:23,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:01:23,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:01:23,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:01:23,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:01:21" (1/3) ... [2021-11-25 19:01:23,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b9660d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:01:23, skipping insertion in model container [2021-11-25 19:01:23,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:01:22" (2/3) ... [2021-11-25 19:01:23,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b9660d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:01:23, skipping insertion in model container [2021-11-25 19:01:23,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:01:23" (3/3) ... [2021-11-25 19:01:23,148 INFO L111 eAbstractionObserver]: Analyzing ICFG 01b_inc.i [2021-11-25 19:01:23,154 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 19:01:23,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:01:23,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:01:23,155 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 19:01:23,176 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,177 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,177 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,177 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,177 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,179 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,179 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,179 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,179 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,185 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,185 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,185 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,188 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,188 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:23,190 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 19:01:23,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:01:23,243 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 [2021-11-25 19:01:23,256 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 19:01:23,269 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 19:01:23,283 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 44 transitions, 93 flow [2021-11-25 19:01:23,286 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 44 transitions, 93 flow [2021-11-25 19:01:23,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 44 transitions, 93 flow [2021-11-25 19:01:23,330 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2021-11-25 19:01:23,330 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-25 19:01:23,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 55 events. 3/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 27. Up to 4 conditions per place. [2021-11-25 19:01:23,336 INFO L116 LiptonReduction]: Number of co-enabled transitions 392 [2021-11-25 19:01:25,552 INFO L131 LiptonReduction]: Checked pairs total: 315 [2021-11-25 19:01:25,552 INFO L133 LiptonReduction]: Total number of compositions: 43 [2021-11-25 19:01:25,561 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2021-11-25 19:01:25,570 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 16 states have internal predecessors, (23), 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) [2021-11-25 19:01:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 16 states have internal predecessors, (23), 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) [2021-11-25 19:01:25,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 19:01:25,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:25,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 19:01:25,578 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:01:25,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:25,583 INFO L85 PathProgramCache]: Analyzing trace with hash 8413294, now seen corresponding path program 1 times [2021-11-25 19:01:25,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:25,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071745120] [2021-11-25 19:01:25,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:25,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:25,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:01:25,744 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:01:25,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071745120] [2021-11-25 19:01:25,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071745120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:01:25,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:01:25,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 19:01:25,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860888378] [2021-11-25 19:01:25,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:01:25,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:01:25,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:01:25,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:01:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:01:25,776 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 16 states have internal predecessors, (23), 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 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-25 19:01:25,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:25,809 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-11-25 19:01:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:01:25,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-11-25 19:01:25,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:01:25,818 INFO L225 Difference]: With dead ends: 11 [2021-11-25 19:01:25,818 INFO L226 Difference]: Without dead ends: 11 [2021-11-25 19:01:25,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:01:25,823 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:01:25,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:01:25,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-25 19:01:25,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-25 19:01:25,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:25,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-11-25 19:01:25,853 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2021-11-25 19:01:25,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:25,853 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-11-25 19:01:25,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-25 19:01:25,854 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-25 19:01:25,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 19:01:25,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:25,854 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-11-25 19:01:25,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:01:25,855 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:01:25,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash -504776931, now seen corresponding path program 1 times [2021-11-25 19:01:25,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:25,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713372024] [2021-11-25 19:01:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:25,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:01:25,914 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 19:01:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:01:25,985 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 19:01:25,985 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 19:01:25,987 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 3 remaining) [2021-11-25 19:01:25,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-25 19:01:25,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-25 19:01:25,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:01:25,992 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 19:01:25,994 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 19:01:25,994 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-25 19:01:26,009 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,010 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,010 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,010 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,010 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,011 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,011 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,011 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,011 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,011 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,011 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,011 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,012 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,012 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,012 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,012 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,013 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,013 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,013 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,013 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,013 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,013 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,016 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,016 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,016 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,016 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,017 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,017 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,017 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,017 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,017 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,017 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,019 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,019 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,019 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,019 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,019 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,019 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,023 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,025 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,026 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,027 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,027 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,029 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:26,033 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 19:01:26,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:01:26,037 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 [2021-11-25 19:01:26,037 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-25 19:01:26,038 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 19:01:26,039 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 59 transitions, 130 flow [2021-11-25 19:01:26,039 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 59 transitions, 130 flow [2021-11-25 19:01:26,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 130 flow [2021-11-25 19:01:26,059 INFO L129 PetriNetUnfolder]: 5/83 cut-off events. [2021-11-25 19:01:26,059 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-25 19:01:26,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 5/83 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 56. Up to 6 conditions per place. [2021-11-25 19:01:26,065 INFO L116 LiptonReduction]: Number of co-enabled transitions 1204 [2021-11-25 19:01:27,399 INFO L131 LiptonReduction]: Checked pairs total: 3892 [2021-11-25 19:01:27,400 INFO L133 LiptonReduction]: Total number of compositions: 36 [2021-11-25 19:01:27,401 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 26 transitions, 64 flow [2021-11-25 19:01:27,433 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 528 states, 520 states have (on average 2.7865384615384614) internal successors, (1449), 527 states have internal predecessors, (1449), 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) [2021-11-25 19:01:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 520 states have (on average 2.7865384615384614) internal successors, (1449), 527 states have internal predecessors, (1449), 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) [2021-11-25 19:01:27,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:01:27,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:27,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:27,439 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:01:27,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:27,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1709073688, now seen corresponding path program 1 times [2021-11-25 19:01:27,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:27,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490743586] [2021-11-25 19:01:27,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:27,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:27,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:01:27,617 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:01:27,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490743586] [2021-11-25 19:01:27,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490743586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:01:27,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:01:27,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:01:27,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003952689] [2021-11-25 19:01:27,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:01:27,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:01:27,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:01:27,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:01:27,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:01:27,621 INFO L87 Difference]: Start difference. First operand has 528 states, 520 states have (on average 2.7865384615384614) internal successors, (1449), 527 states have internal predecessors, (1449), 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:27,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:27,771 INFO L93 Difference]: Finished difference Result 526 states and 1306 transitions. [2021-11-25 19:01:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:01:27,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 19:01:27,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:01:27,793 INFO L225 Difference]: With dead ends: 526 [2021-11-25 19:01:27,793 INFO L226 Difference]: Without dead ends: 526 [2021-11-25 19:01:27,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:01:27,795 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 58 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:01:27,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 26 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:01:27,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-11-25 19:01:27,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 426. [2021-11-25 19:01:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 422 states have (on average 2.585308056872038) internal successors, (1091), 425 states have internal predecessors, (1091), 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) [2021-11-25 19:01:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1091 transitions. [2021-11-25 19:01:27,859 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1091 transitions. Word has length 9 [2021-11-25 19:01:27,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:27,859 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1091 transitions. [2021-11-25 19:01:27,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:27,860 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1091 transitions. [2021-11-25 19:01:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 19:01:27,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:27,861 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2021-11-25 19:01:27,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:01:27,862 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:01:27,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:27,863 INFO L85 PathProgramCache]: Analyzing trace with hash 267458392, now seen corresponding path program 1 times [2021-11-25 19:01:27,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:27,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519510978] [2021-11-25 19:01:27,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:27,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:01:27,882 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 19:01:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:01:27,897 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 19:01:27,901 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 19:01:27,901 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2021-11-25 19:01:27,901 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-25 19:01:27,902 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-25 19:01:27,902 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-25 19:01:27,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:01:27,903 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 19:01:27,903 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 19:01:27,903 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-25 19:01:27,913 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,913 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,914 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,914 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,914 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,914 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,914 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,915 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,915 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,915 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,919 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,919 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,919 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,919 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,923 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,923 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,923 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,923 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,926 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,930 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,930 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,930 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,930 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,930 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,931 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,931 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,931 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,931 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,931 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,931 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,932 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,932 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,932 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,932 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,932 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,932 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,933 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,933 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,933 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,933 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,933 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,935 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,935 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,935 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,935 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,935 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,936 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,936 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,936 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,936 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,936 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,936 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,947 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,947 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,947 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,947 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,947 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,947 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,948 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,952 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,952 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,952 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,952 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,953 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,953 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,953 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,953 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,954 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,954 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,954 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,954 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,955 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,955 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,955 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:27,957 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 19:01:27,961 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:01:27,965 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 [2021-11-25 19:01:27,965 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-25 19:01:27,968 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 19:01:27,969 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 74 transitions, 169 flow [2021-11-25 19:01:27,969 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 74 transitions, 169 flow [2021-11-25 19:01:27,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 169 flow [2021-11-25 19:01:28,010 INFO L129 PetriNetUnfolder]: 7/111 cut-off events. [2021-11-25 19:01:28,010 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-11-25 19:01:28,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 111 events. 7/111 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 235 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 87. Up to 8 conditions per place. [2021-11-25 19:01:28,019 INFO L116 LiptonReduction]: Number of co-enabled transitions 2436 [2021-11-25 19:01:29,475 INFO L131 LiptonReduction]: Checked pairs total: 8539 [2021-11-25 19:01:29,475 INFO L133 LiptonReduction]: Total number of compositions: 42 [2021-11-25 19:01:29,476 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 36 transitions, 93 flow [2021-11-25 19:01:29,672 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4813 states, 4794 states have (on average 3.756779307467668) internal successors, (18010), 4812 states have internal predecessors, (18010), 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) [2021-11-25 19:01:29,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 4813 states, 4794 states have (on average 3.756779307467668) internal successors, (18010), 4812 states have internal predecessors, (18010), 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) [2021-11-25 19:01:29,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:01:29,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:29,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:29,701 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:01:29,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1849905762, now seen corresponding path program 1 times [2021-11-25 19:01:29,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:29,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466766867] [2021-11-25 19:01:29,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:29,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:01:29,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:01:29,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466766867] [2021-11-25 19:01:29,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466766867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:01:29,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:01:29,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:01:29,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500464432] [2021-11-25 19:01:29,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:01:29,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:01:29,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:01:29,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:01:29,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:01:29,875 INFO L87 Difference]: Start difference. First operand has 4813 states, 4794 states have (on average 3.756779307467668) internal successors, (18010), 4812 states have internal predecessors, (18010), 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:30,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:30,240 INFO L93 Difference]: Finished difference Result 5882 states and 20479 transitions. [2021-11-25 19:01:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:01:30,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 19:01:30,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:01:30,319 INFO L225 Difference]: With dead ends: 5882 [2021-11-25 19:01:30,319 INFO L226 Difference]: Without dead ends: 5882 [2021-11-25 19:01:30,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:01:30,323 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 99 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:01:30,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 34 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:01:30,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5882 states. [2021-11-25 19:01:30,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5882 to 4402. [2021-11-25 19:01:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4402 states, 4394 states have (on average 3.5914883932635413) internal successors, (15781), 4401 states have internal predecessors, (15781), 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) [2021-11-25 19:01:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4402 states to 4402 states and 15781 transitions. [2021-11-25 19:01:30,630 INFO L78 Accepts]: Start accepts. Automaton has 4402 states and 15781 transitions. Word has length 9 [2021-11-25 19:01:30,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:30,630 INFO L470 AbstractCegarLoop]: Abstraction has 4402 states and 15781 transitions. [2021-11-25 19:01:30,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:30,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4402 states and 15781 transitions. [2021-11-25 19:01:30,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 19:01:30,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:30,639 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:30,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:01:30,640 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:01:30,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:30,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1645661729, now seen corresponding path program 1 times [2021-11-25 19:01:30,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:30,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464285786] [2021-11-25 19:01:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:30,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:30,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:01:30,775 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:01:30,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464285786] [2021-11-25 19:01:30,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464285786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:01:30,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:01:30,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:01:30,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653686895] [2021-11-25 19:01:30,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:01:30,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:01:30,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:01:30,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:01:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:01:30,778 INFO L87 Difference]: Start difference. First operand 4402 states and 15781 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:31,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:31,072 INFO L93 Difference]: Finished difference Result 6927 states and 24038 transitions. [2021-11-25 19:01:31,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:01:31,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 19:01:31,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:01:31,157 INFO L225 Difference]: With dead ends: 6927 [2021-11-25 19:01:31,157 INFO L226 Difference]: Without dead ends: 6927 [2021-11-25 19:01:31,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:01:31,158 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 94 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:01:31,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 34 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:01:31,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6927 states. [2021-11-25 19:01:31,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6927 to 5187. [2021-11-25 19:01:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5179 states have (on average 3.5715389071249275) internal successors, (18497), 5186 states have internal predecessors, (18497), 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) [2021-11-25 19:01:31,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 18497 transitions. [2021-11-25 19:01:31,488 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 18497 transitions. Word has length 13 [2021-11-25 19:01:31,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:31,488 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 18497 transitions. [2021-11-25 19:01:31,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 18497 transitions. [2021-11-25 19:01:31,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 19:01:31,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:31,491 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2021-11-25 19:01:31,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:01:31,492 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:01:31,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:31,492 INFO L85 PathProgramCache]: Analyzing trace with hash 783881881, now seen corresponding path program 1 times [2021-11-25 19:01:31,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:31,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217561176] [2021-11-25 19:01:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:31,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:01:31,539 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 19:01:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:01:31,568 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 19:01:31,572 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 19:01:31,573 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2021-11-25 19:01:31,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-25 19:01:31,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-25 19:01:31,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-25 19:01:31,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-25 19:01:31,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:01:31,574 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-25 19:01:31,575 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 19:01:31,575 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-25 19:01:31,590 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,591 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,592 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,592 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,592 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,592 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,592 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,605 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,605 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,605 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,605 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,644 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,644 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,644 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,646 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,646 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,646 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,646 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,646 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,646 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,646 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,646 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,647 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,647 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,647 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,647 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,647 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,647 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,647 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,647 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,648 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,649 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,649 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,649 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,649 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,649 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,649 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,649 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,649 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,650 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,650 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,650 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,650 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,650 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,650 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,650 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,650 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,650 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,651 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,651 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,651 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,651 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,651 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,651 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,651 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,663 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,663 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,675 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,676 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,676 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,676 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,676 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,676 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,677 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,677 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,677 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,677 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,677 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,677 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,678 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,678 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,678 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,678 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,678 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,679 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,679 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,679 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,679 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,679 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,679 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,680 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,680 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,680 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,680 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,680 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,680 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,681 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,681 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,681 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,681 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,681 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,681 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,682 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,682 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,682 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,682 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,682 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,683 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,683 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,683 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,683 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,683 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,688 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,688 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,688 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,689 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,689 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,689 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,689 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,689 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,690 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,690 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,690 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,690 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,690 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,690 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,691 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,691 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,691 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,691 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,691 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,691 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,692 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,692 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,692 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,692 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,692 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,692 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,693 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,693 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,693 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,693 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,693 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,694 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,694 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,694 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,694 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,694 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,695 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,707 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,708 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,708 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,708 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,708 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,709 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,709 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,709 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,709 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,710 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,710 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,710 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,710 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,711 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,711 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,711 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,711 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,711 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,711 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,712 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:01:31,712 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 19:01:31,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:01:31,715 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 [2021-11-25 19:01:31,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-25 19:01:31,716 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 19:01:31,717 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 89 transitions, 210 flow [2021-11-25 19:01:31,717 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 89 transitions, 210 flow [2021-11-25 19:01:31,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 210 flow [2021-11-25 19:01:31,772 INFO L129 PetriNetUnfolder]: 9/139 cut-off events. [2021-11-25 19:01:31,772 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-11-25 19:01:31,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 139 events. 9/139 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 301 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 119. Up to 10 conditions per place. [2021-11-25 19:01:31,780 INFO L116 LiptonReduction]: Number of co-enabled transitions 4088 [2021-11-25 19:01:33,606 INFO L131 LiptonReduction]: Checked pairs total: 17668 [2021-11-25 19:01:33,607 INFO L133 LiptonReduction]: Total number of compositions: 48 [2021-11-25 19:01:33,607 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 46 transitions, 124 flow [2021-11-25 19:01:35,098 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 43434 states, 43392 states have (on average 4.74695796460177) internal successors, (205980), 43433 states have internal predecessors, (205980), 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) [2021-11-25 19:01:35,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 43434 states, 43392 states have (on average 4.74695796460177) internal successors, (205980), 43433 states have internal predecessors, (205980), 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) [2021-11-25 19:01:35,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:01:35,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:35,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:35,180 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 19:01:35,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:35,182 INFO L85 PathProgramCache]: Analyzing trace with hash -638628356, now seen corresponding path program 1 times [2021-11-25 19:01:35,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:35,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367296265] [2021-11-25 19:01:35,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:35,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:35,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:01:35,449 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:01:35,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367296265] [2021-11-25 19:01:35,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367296265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:01:35,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:01:35,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:01:35,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070525172] [2021-11-25 19:01:35,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:01:35,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:01:35,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:01:35,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:01:35,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:01:35,533 INFO L87 Difference]: Start difference. First operand has 43434 states, 43392 states have (on average 4.74695796460177) internal successors, (205980), 43433 states have internal predecessors, (205980), 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:37,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:37,055 INFO L93 Difference]: Finished difference Result 59286 states and 267144 transitions. [2021-11-25 19:01:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:01:37,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 19:01:37,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:01:37,972 INFO L225 Difference]: With dead ends: 59286 [2021-11-25 19:01:37,972 INFO L226 Difference]: Without dead ends: 59286 [2021-11-25 19:01:37,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:01:37,974 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 134 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:01:37,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 37 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:01:38,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59286 states. [2021-11-25 19:01:40,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59286 to 42986. [2021-11-25 19:01:40,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42986 states, 42970 states have (on average 4.620875029090063) internal successors, (198559), 42985 states have internal predecessors, (198559), 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) [2021-11-25 19:01:41,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42986 states to 42986 states and 198559 transitions. [2021-11-25 19:01:41,052 INFO L78 Accepts]: Start accepts. Automaton has 42986 states and 198559 transitions. Word has length 9 [2021-11-25 19:01:41,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:41,052 INFO L470 AbstractCegarLoop]: Abstraction has 42986 states and 198559 transitions. [2021-11-25 19:01:41,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:41,053 INFO L276 IsEmpty]: Start isEmpty. Operand 42986 states and 198559 transitions. [2021-11-25 19:01:41,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 19:01:41,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:41,054 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:41,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:01:41,054 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 19:01:41,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:41,055 INFO L85 PathProgramCache]: Analyzing trace with hash -32691950, now seen corresponding path program 1 times [2021-11-25 19:01:41,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:41,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969078478] [2021-11-25 19:01:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:41,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:01:41,183 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:01:41,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969078478] [2021-11-25 19:01:41,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969078478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:01:41,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:01:41,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:01:41,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817909481] [2021-11-25 19:01:41,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:01:41,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:01:41,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:01:41,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:01:41,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:01:41,186 INFO L87 Difference]: Start difference. First operand 42986 states and 198559 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:42,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:42,472 INFO L93 Difference]: Finished difference Result 73351 states and 330024 transitions. [2021-11-25 19:01:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:01:42,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 19:01:42,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:01:43,053 INFO L225 Difference]: With dead ends: 73351 [2021-11-25 19:01:43,053 INFO L226 Difference]: Without dead ends: 73351 [2021-11-25 19:01:43,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:01:43,054 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 129 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:01:43,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 42 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:01:43,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73351 states. [2021-11-25 19:01:45,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73351 to 53203. [2021-11-25 19:01:45,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53203 states, 53187 states have (on average 4.606783612536898) internal successors, (245021), 53202 states have internal predecessors, (245021), 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) [2021-11-25 19:01:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53203 states to 53203 states and 245021 transitions. [2021-11-25 19:01:45,912 INFO L78 Accepts]: Start accepts. Automaton has 53203 states and 245021 transitions. Word has length 13 [2021-11-25 19:01:45,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:45,912 INFO L470 AbstractCegarLoop]: Abstraction has 53203 states and 245021 transitions. [2021-11-25 19:01:45,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:45,913 INFO L276 IsEmpty]: Start isEmpty. Operand 53203 states and 245021 transitions. [2021-11-25 19:01:45,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 19:01:45,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:45,915 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:45,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:01:45,915 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 19:01:45,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:45,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1799255016, now seen corresponding path program 1 times [2021-11-25 19:01:45,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:45,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858000363] [2021-11-25 19:01:45,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:45,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:46,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:01:46,024 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:01:46,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858000363] [2021-11-25 19:01:46,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858000363] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:01:46,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157548834] [2021-11-25 19:01:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:46,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:01:46,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:01:46,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:01:46,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:01:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:46,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-25 19:01:46,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:01:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:01:46,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:01:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:01:47,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157548834] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:01:47,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [266288325] [2021-11-25 19:01:47,216 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 19:01:47,223 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:01:47,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 13 [2021-11-25 19:01:47,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422961925] [2021-11-25 19:01:47,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 19:01:47,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 19:01:47,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:01:47,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 19:01:47,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-11-25 19:01:47,227 INFO L87 Difference]: Start difference. First operand 53203 states and 245021 transitions. Second operand has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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) [2021-11-25 19:01:58,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:58,017 INFO L93 Difference]: Finished difference Result 382378 states and 1648916 transitions. [2021-11-25 19:01:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-25 19:01:58,018 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 19:01:58,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:02:01,683 INFO L225 Difference]: With dead ends: 382378 [2021-11-25 19:02:01,683 INFO L226 Difference]: Without dead ends: 382378 [2021-11-25 19:02:01,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1708 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1084, Invalid=3746, Unknown=0, NotChecked=0, Total=4830 [2021-11-25 19:02:01,686 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 908 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 3184 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 3381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 3184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:02:01,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 372 Invalid, 3381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 3184 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 19:02:03,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382378 states. [2021-11-25 19:02:13,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382378 to 129005. [2021-11-25 19:02:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129005 states, 128989 states have (on average 4.564358201086915) internal successors, (588752), 129004 states have internal predecessors, (588752), 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) [2021-11-25 19:02:14,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129005 states to 129005 states and 588752 transitions. [2021-11-25 19:02:14,508 INFO L78 Accepts]: Start accepts. Automaton has 129005 states and 588752 transitions. Word has length 17 [2021-11-25 19:02:14,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:02:14,508 INFO L470 AbstractCegarLoop]: Abstraction has 129005 states and 588752 transitions. [2021-11-25 19:02:14,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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) [2021-11-25 19:02:14,508 INFO L276 IsEmpty]: Start isEmpty. Operand 129005 states and 588752 transitions. [2021-11-25 19:02:14,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 19:02:14,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:02:14,511 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:02:14,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 19:02:14,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8455f8-2327-4473-bd17-aa09c286baa3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 19:02:14,716 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 19:02:14,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:02:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2042492676, now seen corresponding path program 1 times [2021-11-25 19:02:14,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:02:14,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23724266] [2021-11-25 19:02:14,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:02:14,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:02:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:02:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:02:14,855 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:02:14,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23724266] [2021-11-25 19:02:14,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23724266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:02:14,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:02:14,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:02:14,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817148853] [2021-11-25 19:02:14,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:02:14,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:02:14,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:02:14,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:02:14,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:02:14,857 INFO L87 Difference]: Start difference. First operand 129005 states and 588752 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:02:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:02:18,552 INFO L93 Difference]: Finished difference Result 174085 states and 780017 transitions. [2021-11-25 19:02:18,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:02:18,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 19:02:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:02:19,863 INFO L225 Difference]: With dead ends: 174085 [2021-11-25 19:02:19,863 INFO L226 Difference]: Without dead ends: 174085 [2021-11-25 19:02:19,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:02:19,864 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 157 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:02:19,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 62 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 19:02:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174085 states. [2021-11-25 19:02:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174085 to 129999. [2021-11-25 19:02:26,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129999 states, 129983 states have (on average 4.566227891339636) internal successors, (593532), 129998 states have internal predecessors, (593532), 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)