./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE --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 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:01:04,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:01:04,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:01:04,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:01:04,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:01:04,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:01:04,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:01:04,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:01:04,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:01:04,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:01:04,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:01:04,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:01:04,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:01:04,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:01:04,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:01:04,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:01:04,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:01:04,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:01:04,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:01:04,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:01:04,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:01:04,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:01:04,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:01:04,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:01:04,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:01:04,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:01:04,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:01:04,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:01:04,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:01:04,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:01:04,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:01:04,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:01:04,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:01:04,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:01:04,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:01:04,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:01:04,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:01:04,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:01:04,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:01:04,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:01:04,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:01:04,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:01:04,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:01:04,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:01:04,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:01:04,473 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:01:04,473 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:01:04,473 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:01:04,474 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:01:04,474 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:01:04,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:01:04,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:01:04,481 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:01:04,482 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:01:04,482 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:01:04,482 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:01:04,482 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:01:04,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:01:04,483 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:01:04,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:01:04,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:01:04,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:01:04,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:01:04,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:01:04,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:01:04,485 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:01:04,485 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:01:04,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:01:04,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:01:04,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:01:04,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:01:04,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:01:04,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:01:04,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:01:04,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:01:04,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:01:04,489 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:01:04,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:01:04,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:01:04,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:01:04,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:01:04,490 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_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 [2021-10-24 10:01:04,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:01:04,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:01:04,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:01:04,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:01:04,752 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:01:04,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/pthread/stack-2.i [2021-10-24 10:01:04,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/data/063a25e6a/06e13a2eeb944760879db91c91611c38/FLAG7343c9399 [2021-10-24 10:01:05,347 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:01:05,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/sv-benchmarks/c/pthread/stack-2.i [2021-10-24 10:01:05,364 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/data/063a25e6a/06e13a2eeb944760879db91c91611c38/FLAG7343c9399 [2021-10-24 10:01:05,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/data/063a25e6a/06e13a2eeb944760879db91c91611c38 [2021-10-24 10:01:05,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:01:05,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:01:05,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:01:05,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:01:05,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:01:05,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:01:05" (1/1) ... [2021-10-24 10:01:05,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4412b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:05, skipping insertion in model container [2021-10-24 10:01:05,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:01:05" (1/1) ... [2021-10-24 10:01:05,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:01:05,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:01:06,353 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2021-10-24 10:01:06,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:01:06,387 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:01:06,420 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2021-10-24 10:01:06,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:01:06,492 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:01:06,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06 WrapperNode [2021-10-24 10:01:06,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:01:06,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:01:06,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:01:06,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:01:06,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:01:06,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:01:06,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:01:06,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:01:06,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:01:06,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:01:06,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:01:06,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:01:06,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (1/1) ... [2021-10-24 10:01:06,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:01:06,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:01:06,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:01:06,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:01:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-10-24 10:01:06,667 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-10-24 10:01:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-10-24 10:01:06,669 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-10-24 10:01:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:01:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:01:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 10:01:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 10:01:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-24 10:01:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:01:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:01:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:01:06,672 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-24 10:01:07,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:01:07,171 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-24 10:01:07,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:01:07 BoogieIcfgContainer [2021-10-24 10:01:07,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:01:07,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:01:07,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:01:07,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:01:07,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:01:05" (1/3) ... [2021-10-24 10:01:07,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af2e803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:01:07, skipping insertion in model container [2021-10-24 10:01:07,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:06" (2/3) ... [2021-10-24 10:01:07,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af2e803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:01:07, skipping insertion in model container [2021-10-24 10:01:07,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:01:07" (3/3) ... [2021-10-24 10:01:07,183 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-2.i [2021-10-24 10:01:07,188 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-24 10:01:07,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:01:07,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-24 10:01:07,188 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-24 10:01:07,227 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,227 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,227 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,228 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,228 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,228 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,228 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,228 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,229 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,229 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,229 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,229 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,230 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,230 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,230 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,230 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,230 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,231 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,231 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,231 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,231 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,231 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,232 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,232 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,233 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,233 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,233 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,233 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,233 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,233 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,234 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,234 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,234 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,234 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,235 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,235 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,235 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,235 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,235 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,236 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,236 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,236 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,236 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,236 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,237 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,237 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,237 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,237 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,237 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,238 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,238 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,238 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,238 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,238 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,239 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,239 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,239 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,239 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,240 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,240 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,240 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,240 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,240 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,240 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,241 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,241 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,241 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,241 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,241 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,242 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,242 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,242 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,242 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,242 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,243 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,243 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,243 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,243 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,244 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,244 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,244 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,244 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,245 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,245 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,245 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,245 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,245 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,246 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,246 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,246 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,246 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,246 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,247 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,247 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,247 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,247 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,247 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,248 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,248 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,248 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,248 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,249 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,249 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,249 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,249 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,249 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,250 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,250 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,250 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,250 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,250 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,251 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,251 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,251 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,251 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,251 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,252 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,252 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,252 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,253 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,253 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,253 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,253 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,253 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,254 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,254 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,254 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,254 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,254 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,255 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,255 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,255 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,255 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,255 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,256 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,256 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,257 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,257 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,257 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,257 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,258 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,258 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,258 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,258 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,258 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,259 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,259 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,259 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,259 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,260 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,260 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,260 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,260 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,260 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,261 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,261 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,261 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,261 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,262 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,262 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,262 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,262 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,262 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,263 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,263 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,263 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,263 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,264 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,264 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,264 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,264 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,264 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,264 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,265 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,265 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,265 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,265 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,265 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,266 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,266 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,266 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,266 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,266 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,266 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,267 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,267 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,267 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,267 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,267 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,268 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,268 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,268 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,268 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,268 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,268 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,271 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,271 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,271 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,271 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,271 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,274 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,274 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,274 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,274 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,274 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,274 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,275 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,275 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,275 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,275 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,275 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,276 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,276 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,276 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,276 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,276 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,276 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,277 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,277 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,277 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,277 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,277 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,278 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,278 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,278 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,278 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,278 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,278 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,279 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,279 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,279 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,279 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,279 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,279 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,280 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,280 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,280 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,280 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,280 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,280 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,281 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,281 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,281 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,281 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,284 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,284 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,285 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,285 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,285 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,285 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,285 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,286 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,286 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,286 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,286 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,286 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,286 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,287 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,287 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,287 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,287 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,287 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,287 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,288 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,288 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,288 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,288 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,292 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,293 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,293 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,293 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,293 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,293 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,294 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,294 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,294 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,294 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,294 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,294 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,295 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,295 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,295 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,295 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,295 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,295 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,296 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:01:07,302 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-24 10:01:07,344 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:01:07,351 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 [2021-10-24 10:01:07,351 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-24 10:01:07,367 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-24 10:01:07,377 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 159 transitions, 334 flow [2021-10-24 10:01:07,379 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 159 transitions, 334 flow [2021-10-24 10:01:07,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 159 transitions, 334 flow [2021-10-24 10:01:07,446 INFO L129 PetriNetUnfolder]: 10/157 cut-off events. [2021-10-24 10:01:07,446 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-24 10:01:07,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 10/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 358 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 115. Up to 3 conditions per place. [2021-10-24 10:01:07,459 INFO L116 LiptonReduction]: Number of co-enabled transitions 6972 [2021-10-24 10:01:15,403 INFO L131 LiptonReduction]: Checked pairs total: 10002 [2021-10-24 10:01:15,403 INFO L133 LiptonReduction]: Total number of compositions: 151 [2021-10-24 10:01:15,411 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 37 transitions, 90 flow [2021-10-24 10:01:15,439 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 284 states, 281 states have (on average 2.7829181494661923) internal successors, (782), 283 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:15,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 284 states, 281 states have (on average 2.7829181494661923) internal successors, (782), 283 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:15,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:01:15,448 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:15,448 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:01:15,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:15,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:15,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2083407298, now seen corresponding path program 1 times [2021-10-24 10:01:15,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:15,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609442351] [2021-10-24 10:01:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:15,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:15,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:15,684 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:01:15,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609442351] [2021-10-24 10:01:15,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609442351] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:01:15,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:01:15,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:01:15,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944868898] [2021-10-24 10:01:15,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:01:15,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:01:15,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:01:15,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:01:15,722 INFO L87 Difference]: Start difference. First operand has 284 states, 281 states have (on average 2.7829181494661923) internal successors, (782), 283 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:01:15,808 INFO L93 Difference]: Finished difference Result 502 states and 1336 transitions. [2021-10-24 10:01:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:01:15,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-10-24 10:01:15,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:01:15,834 INFO L225 Difference]: With dead ends: 502 [2021-10-24 10:01:15,834 INFO L226 Difference]: Without dead ends: 502 [2021-10-24 10:01:15,835 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:01:15,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-10-24 10:01:15,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 372. [2021-10-24 10:01:15,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 369 states have (on average 2.7913279132791327) internal successors, (1030), 371 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 1030 transitions. [2021-10-24 10:01:15,914 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 1030 transitions. Word has length 6 [2021-10-24 10:01:15,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:01:15,915 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 1030 transitions. [2021-10-24 10:01:15,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:15,915 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 1030 transitions. [2021-10-24 10:01:15,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 10:01:15,916 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:15,916 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:01:15,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:01:15,917 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:15,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:15,917 INFO L82 PathProgramCache]: Analyzing trace with hash 840928936, now seen corresponding path program 1 times [2021-10-24 10:01:15,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:15,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408685386] [2021-10-24 10:01:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:15,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:16,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:16,079 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:01:16,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408685386] [2021-10-24 10:01:16,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408685386] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:01:16,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:01:16,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:01:16,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565316445] [2021-10-24 10:01:16,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:01:16,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:01:16,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:01:16,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:01:16,088 INFO L87 Difference]: Start difference. First operand 372 states and 1030 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:16,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:01:16,106 INFO L93 Difference]: Finished difference Result 450 states and 1202 transitions. [2021-10-24 10:01:16,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:01:16,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-10-24 10:01:16,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:01:16,112 INFO L225 Difference]: With dead ends: 450 [2021-10-24 10:01:16,113 INFO L226 Difference]: Without dead ends: 432 [2021-10-24 10:01:16,113 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:01:16,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-10-24 10:01:16,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 416. [2021-10-24 10:01:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 412 states have (on average 2.762135922330097) internal successors, (1138), 415 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:16,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 1138 transitions. [2021-10-24 10:01:16,155 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 1138 transitions. Word has length 8 [2021-10-24 10:01:16,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:01:16,156 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 1138 transitions. [2021-10-24 10:01:16,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:16,156 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 1138 transitions. [2021-10-24 10:01:16,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:01:16,158 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:16,158 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:01:16,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:01:16,159 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:16,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:16,159 INFO L82 PathProgramCache]: Analyzing trace with hash -2138534371, now seen corresponding path program 1 times [2021-10-24 10:01:16,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:16,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334443893] [2021-10-24 10:01:16,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:16,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:16,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:16,260 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:01:16,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334443893] [2021-10-24 10:01:16,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334443893] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:01:16,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:01:16,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:01:16,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176081548] [2021-10-24 10:01:16,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:01:16,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:01:16,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:01:16,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:01:16,269 INFO L87 Difference]: Start difference. First operand 416 states and 1138 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:16,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:01:16,284 INFO L93 Difference]: Finished difference Result 446 states and 1219 transitions. [2021-10-24 10:01:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:01:16,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-10-24 10:01:16,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:01:16,289 INFO L225 Difference]: With dead ends: 446 [2021-10-24 10:01:16,289 INFO L226 Difference]: Without dead ends: 446 [2021-10-24 10:01:16,290 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:01:16,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-10-24 10:01:16,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2021-10-24 10:01:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 443 states have (on average 2.7516930022573365) internal successors, (1219), 445 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 1219 transitions. [2021-10-24 10:01:16,312 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 1219 transitions. Word has length 10 [2021-10-24 10:01:16,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:01:16,313 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 1219 transitions. [2021-10-24 10:01:16,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 1219 transitions. [2021-10-24 10:01:16,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-24 10:01:16,320 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:16,320 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:01:16,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 10:01:16,321 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:16,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:16,321 INFO L82 PathProgramCache]: Analyzing trace with hash -806150405, now seen corresponding path program 1 times [2021-10-24 10:01:16,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:16,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861499748] [2021-10-24 10:01:16,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:16,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:16,457 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:01:16,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861499748] [2021-10-24 10:01:16,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861499748] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 10:01:16,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535031165] [2021-10-24 10:01:16,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:16,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:01:16,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:01:16,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:01:16,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-24 10:01:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:16,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:01:16,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:01:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:16,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:01:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:16,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535031165] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:01:16,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1195531525] [2021-10-24 10:01:16,702 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:608) 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) [2021-10-24 10:01:16,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 10:01:16,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2021-10-24 10:01:16,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426124318] [2021-10-24 10:01:16,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:01:16,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:01:16,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:01:16,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:01:16,707 INFO L87 Difference]: Start difference. First operand 446 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:16,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:01:16,919 INFO L93 Difference]: Finished difference Result 1106 states and 2923 transitions. [2021-10-24 10:01:16,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 10:01:16,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-24 10:01:16,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:01:16,929 INFO L225 Difference]: With dead ends: 1106 [2021-10-24 10:01:16,929 INFO L226 Difference]: Without dead ends: 1106 [2021-10-24 10:01:16,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 43.8ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:01:16,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2021-10-24 10:01:16,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 798. [2021-10-24 10:01:16,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 795 states have (on average 2.762264150943396) internal successors, (2196), 797 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 2196 transitions. [2021-10-24 10:01:16,967 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 2196 transitions. Word has length 14 [2021-10-24 10:01:16,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:01:16,968 INFO L470 AbstractCegarLoop]: Abstraction has 798 states and 2196 transitions. [2021-10-24 10:01:16,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 2196 transitions. [2021-10-24 10:01:16,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:01:16,971 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:16,971 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:01:17,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:01:17,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:01:17,197 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:17,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:17,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1032068104, now seen corresponding path program 1 times [2021-10-24 10:01:17,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:17,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097340234] [2021-10-24 10:01:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:17,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:17,272 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:01:17,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097340234] [2021-10-24 10:01:17,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097340234] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:01:17,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:01:17,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:01:17,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546802355] [2021-10-24 10:01:17,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:01:17,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:01:17,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:01:17,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:01:17,274 INFO L87 Difference]: Start difference. First operand 798 states and 2196 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:17,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:01:17,300 INFO L93 Difference]: Finished difference Result 342 states and 792 transitions. [2021-10-24 10:01:17,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:01:17,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 10:01:17,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:01:17,304 INFO L225 Difference]: With dead ends: 342 [2021-10-24 10:01:17,304 INFO L226 Difference]: Without dead ends: 338 [2021-10-24 10:01:17,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:01:17,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-10-24 10:01:17,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 306. [2021-10-24 10:01:17,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 304 states have (on average 2.3026315789473686) internal successors, (700), 305 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:17,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 700 transitions. [2021-10-24 10:01:17,316 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 700 transitions. Word has length 16 [2021-10-24 10:01:17,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:01:17,316 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 700 transitions. [2021-10-24 10:01:17,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:17,316 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 700 transitions. [2021-10-24 10:01:17,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 10:01:17,317 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:17,317 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:01:17,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 10:01:17,318 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:17,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:17,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1825664366, now seen corresponding path program 1 times [2021-10-24 10:01:17,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:17,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981834161] [2021-10-24 10:01:17,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:17,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:17,410 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:01:17,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981834161] [2021-10-24 10:01:17,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981834161] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:01:17,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:01:17,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:01:17,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837710997] [2021-10-24 10:01:17,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:01:17,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:01:17,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:01:17,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:01:17,413 INFO L87 Difference]: Start difference. First operand 306 states and 700 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) 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) [2021-10-24 10:01:17,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:01:17,513 INFO L93 Difference]: Finished difference Result 390 states and 886 transitions. [2021-10-24 10:01:17,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:01:17,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) 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 [2021-10-24 10:01:17,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:01:17,516 INFO L225 Difference]: With dead ends: 390 [2021-10-24 10:01:17,517 INFO L226 Difference]: Without dead ends: 390 [2021-10-24 10:01:17,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:01:17,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-10-24 10:01:17,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 338. [2021-10-24 10:01:17,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 336 states have (on average 2.330357142857143) internal successors, (783), 337 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:17,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 783 transitions. [2021-10-24 10:01:17,529 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 783 transitions. Word has length 17 [2021-10-24 10:01:17,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:01:17,530 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 783 transitions. [2021-10-24 10:01:17,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) 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) [2021-10-24 10:01:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 783 transitions. [2021-10-24 10:01:17,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:01:17,531 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:17,532 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:01:17,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 10:01:17,532 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:17,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:17,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1730325424, now seen corresponding path program 1 times [2021-10-24 10:01:17,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:17,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114081246] [2021-10-24 10:01:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:17,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:18,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:01:18,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114081246] [2021-10-24 10:01:18,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114081246] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:01:18,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:01:18,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-24 10:01:18,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703669659] [2021-10-24 10:01:18,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 10:01:18,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:01:18,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 10:01:18,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-10-24 10:01:18,096 INFO L87 Difference]: Start difference. First operand 338 states and 783 transitions. Second operand has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:19,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:01:19,387 INFO L93 Difference]: Finished difference Result 626 states and 1409 transitions. [2021-10-24 10:01:19,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-24 10:01:19,388 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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 21 [2021-10-24 10:01:19,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:01:19,393 INFO L225 Difference]: With dead ends: 626 [2021-10-24 10:01:19,393 INFO L226 Difference]: Without dead ends: 626 [2021-10-24 10:01:19,394 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 999.8ms TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2021-10-24 10:01:19,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2021-10-24 10:01:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 468. [2021-10-24 10:01:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 466 states have (on average 2.3733905579399144) internal successors, (1106), 467 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1106 transitions. [2021-10-24 10:01:19,412 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1106 transitions. Word has length 21 [2021-10-24 10:01:19,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:01:19,413 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 1106 transitions. [2021-10-24 10:01:19,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1106 transitions. [2021-10-24 10:01:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:01:19,414 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:19,415 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:01:19,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-24 10:01:19,415 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:19,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:19,416 INFO L82 PathProgramCache]: Analyzing trace with hash -2105411128, now seen corresponding path program 2 times [2021-10-24 10:01:19,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:19,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201235114] [2021-10-24 10:01:19,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:19,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:20,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:20,061 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:01:20,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201235114] [2021-10-24 10:01:20,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201235114] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:01:20,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:01:20,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-24 10:01:20,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314406935] [2021-10-24 10:01:20,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-24 10:01:20,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:01:20,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-24 10:01:20,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-10-24 10:01:20,070 INFO L87 Difference]: Start difference. First operand 468 states and 1106 transitions. Second operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:20,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:01:20,996 INFO L93 Difference]: Finished difference Result 750 states and 1740 transitions. [2021-10-24 10:01:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 10:01:20,997 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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 21 [2021-10-24 10:01:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:01:21,003 INFO L225 Difference]: With dead ends: 750 [2021-10-24 10:01:21,003 INFO L226 Difference]: Without dead ends: 750 [2021-10-24 10:01:21,004 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 641.9ms TimeCoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2021-10-24 10:01:21,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-10-24 10:01:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 513. [2021-10-24 10:01:21,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 511 states have (on average 2.426614481409002) internal successors, (1240), 512 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 1240 transitions. [2021-10-24 10:01:21,039 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 1240 transitions. Word has length 21 [2021-10-24 10:01:21,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:01:21,039 INFO L470 AbstractCegarLoop]: Abstraction has 513 states and 1240 transitions. [2021-10-24 10:01:21,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:21,040 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 1240 transitions. [2021-10-24 10:01:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:01:21,041 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:21,041 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:01:21,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-24 10:01:21,042 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:21,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:21,043 INFO L82 PathProgramCache]: Analyzing trace with hash 950566494, now seen corresponding path program 3 times [2021-10-24 10:01:21,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:21,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965974970] [2021-10-24 10:01:21,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:21,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:21,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:01:21,623 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:01:21,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965974970] [2021-10-24 10:01:21,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965974970] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:01:21,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:01:21,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-24 10:01:21,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322163472] [2021-10-24 10:01:21,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-24 10:01:21,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:01:21,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-24 10:01:21,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-10-24 10:01:21,625 INFO L87 Difference]: Start difference. First operand 513 states and 1240 transitions. Second operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:22,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:01:22,963 INFO L93 Difference]: Finished difference Result 817 states and 1888 transitions. [2021-10-24 10:01:22,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 10:01:22,963 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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 21 [2021-10-24 10:01:22,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:01:22,971 INFO L225 Difference]: With dead ends: 817 [2021-10-24 10:01:22,971 INFO L226 Difference]: Without dead ends: 817 [2021-10-24 10:01:22,972 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1033.0ms TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2021-10-24 10:01:22,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2021-10-24 10:01:22,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 454. [2021-10-24 10:01:22,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 452 states have (on average 2.3650442477876106) internal successors, (1069), 453 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:22,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 1069 transitions. [2021-10-24 10:01:22,991 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 1069 transitions. Word has length 21 [2021-10-24 10:01:22,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:01:22,993 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 1069 transitions. [2021-10-24 10:01:22,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:01:22,993 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 1069 transitions. [2021-10-24 10:01:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:01:22,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:01:22,995 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:01:22,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-24 10:01:22,995 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-24 10:01:22,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:01:22,996 INFO L82 PathProgramCache]: Analyzing trace with hash 74352249, now seen corresponding path program 1 times [2021-10-24 10:01:22,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:01:22,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622910733] [2021-10-24 10:01:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:22,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:01:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:01:23,051 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:01:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:01:23,144 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:01:23,145 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:01:23,146 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:01:23,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-24 10:01:23,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-24 10:01:23,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:01:23,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:01:23,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:01:23,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-24 10:01:23,154 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-24 10:01:23,154 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:01:23,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:01:23 BasicIcfg [2021-10-24 10:01:23,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:01:23,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:01:23,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:01:23,255 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:01:23,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:01:07" (3/4) ... [2021-10-24 10:01:23,257 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:01:23,324 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:01:23,324 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:01:23,326 INFO L168 Benchmark]: Toolchain (without parser) took 17472.10 ms. Allocated memory was 113.2 MB in the beginning and 197.1 MB in the end (delta: 83.9 MB). Free memory was 78.1 MB in the beginning and 87.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:23,326 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 113.2 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 54.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:01:23,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.23 ms. Allocated memory is still 113.2 MB. Free memory was 77.8 MB in the beginning and 66.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:23,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.44 ms. Allocated memory is still 113.2 MB. Free memory was 66.2 MB in the beginning and 63.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:23,327 INFO L168 Benchmark]: Boogie Preprocessor took 31.22 ms. Allocated memory is still 113.2 MB. Free memory was 63.8 MB in the beginning and 62.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:23,328 INFO L168 Benchmark]: RCFGBuilder took 592.57 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 62.0 MB in the beginning and 102.8 MB in the end (delta: -40.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:23,328 INFO L168 Benchmark]: TraceAbstraction took 16078.98 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 101.7 MB in the beginning and 98.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 63.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:23,328 INFO L168 Benchmark]: Witness Printer took 69.61 ms. Allocated memory is still 197.1 MB. Free memory was 98.0 MB in the beginning and 87.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:23,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 113.2 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 54.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 639.23 ms. Allocated memory is still 113.2 MB. Free memory was 77.8 MB in the beginning and 66.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.44 ms. Allocated memory is still 113.2 MB. Free memory was 66.2 MB in the beginning and 63.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.22 ms. Allocated memory is still 113.2 MB. Free memory was 63.8 MB in the beginning and 62.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 592.57 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 62.0 MB in the beginning and 102.8 MB in the end (delta: -40.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16078.98 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 101.7 MB in the beginning and 98.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 63.5 MB. Max. memory is 16.1 GB. * Witness Printer took 69.61 ms. Allocated memory is still 197.1 MB. Free memory was 98.0 MB in the beginning and 87.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8023.8ms, 156 PlacesBefore, 38 PlacesAfterwards, 159 TransitionsBefore, 37 TransitionsAfterwards, 6972 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 86 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 4 ChoiceCompositions, 151 TotalNumberOfCompositions, 10002 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7909, positive: 7733, positive conditional: 0, positive unconditional: 7733, negative: 176, negative conditional: 0, negative unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5241, positive: 5177, positive conditional: 0, positive unconditional: 5177, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5241, positive: 5143, positive conditional: 0, positive unconditional: 5143, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 98, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 216, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 175, negative conditional: 0, negative unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7909, positive: 2556, positive conditional: 0, positive unconditional: 2556, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 5241, unknown conditional: 0, unknown unconditional: 5241] , Statistics on independence cache: Total cache size (in pairs): 308, Positive cache size: 286, Positive conditional cache size: 0, Positive unconditional cache size: 286, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 941]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L935] 0 static int top=0; [L936] 0 static unsigned int arr[(5)]; [L937] 0 pthread_mutex_t m; [L938] 0 _Bool flag=(0); [L1021] 0 pthread_t id1, id2; [L1023] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={7:0}, flag=0, m={13:0}, top=0] [L990] 1 int i; [L991] 1 unsigned int tmp; [L992] 1 i=0 VAL [arr={7:0}, flag=0, m={13:0}, top=0] [L992] COND TRUE 1 i<(5) [L995] 1 tmp = __VERIFIER_nondet_uint() [L23] COND FALSE 1 !(!cond) [L962] COND FALSE 1 !(top==(5)) VAL [arr={7:0}, flag=0, m={13:0}, top=0] [L954] 1 return top; [L969] 1 stack[get_top()] = x [L946] 1 top++ [L972] 1 return 0; [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) [L999] 1 flag=(1) VAL [arr={7:0}, flag=1, m={13:0}, top=1] [L992] 1 i++ VAL [arr={7:0}, flag=1, m={13:0}, top=1] [L1024] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={7:0}, flag=1, m={13:0}, top=1] [L1006] 2 int i; [L1007] 2 i=0 VAL [arr={7:0}, flag=1, m={13:0}, top=1] [L1007] COND TRUE 2 i<(5) [L1010] COND TRUE 2 \read(flag) [L954] 2 return top; [L976] COND FALSE 2 !(get_top()==0) VAL [arr={7:0}, flag=1, m={13:0}, top=1] [L950] 2 top-- VAL [arr={7:0}, flag=1, m={13:0}, top=0] [L954] 2 return top; [L984] EXPR 2 stack[get_top()] [L984] 2 return stack[get_top()]; [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) [L1007] 2 i++ VAL [arr={7:0}, flag=1, m={13:0}, top=0] [L1007] COND TRUE 2 i<(5) [L1010] COND TRUE 2 \read(flag) [L954] 2 return top; [L976] COND TRUE 2 get_top()==0 [L979] 2 return (-2); [L1012] COND TRUE 2 !(pop(arr)!=(-2)) [L941] 2 reach_error() VAL [arr={7:0}, flag=1, m={13:0}, top=0] - UnprovableResult [Line: 1023]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1024]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 248 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 15808.7ms, OverallIterations: 10, TraceHistogramMax: 2, EmptinessCheckTime: 26.1ms, AutomataDifference: 4132.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8088.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 416 SDtfs, 588 SDslu, 1693 SDs, 0 SdLazy, 2203 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1451.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 2765.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred in iteration=4, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 262.8ms AutomataMinimizationTime, 9 MinimizatonAttempts, 1296 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 69.8ms SsaConstructionTime, 428.4ms SatisfiabilityAnalysisTime, 2124.5ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 1766 SizeOfPredicates, 1 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 10:01:23,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75f91e7-3a78-4301-846a-b5389af3b30d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...