./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 13:56:00,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:56:00,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:56:00,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:56:00,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:56:00,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:56:00,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:56:00,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:56:00,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:56:00,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:56:00,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:56:00,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:56:00,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:56:00,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:56:00,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:56:00,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:56:00,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:56:00,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:56:00,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:56:00,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:56:00,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:56:00,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:56:00,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:56:00,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:56:00,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:56:00,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:56:00,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:56:00,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:56:00,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:56:00,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:56:00,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:56:00,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:56:00,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:56:00,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:56:00,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:56:00,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:56:00,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:56:00,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:56:00,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:56:00,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:56:00,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:56:00,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 13:56:00,642 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:56:00,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:56:00,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:56:00,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:56:00,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:56:00,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:56:00,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:56:00,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:56:00,646 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:56:00,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:56:00,646 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:56:00,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:56:00,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:56:00,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:56:00,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:56:00,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:56:00,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:56:00,648 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:56:00,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:56:00,649 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:56:00,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:56:00,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:56:00,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:56:00,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:56:00,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:56:00,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:56:00,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:56:00,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:56:00,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:56:00,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:56:00,652 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:56:00,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:56:00,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:56:00,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 [2022-11-21 13:56:00,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:56:01,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:56:01,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:56:01,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:56:01,009 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:56:01,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-11-21 13:56:04,063 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:56:04,266 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:56:04,267 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-11-21 13:56:04,274 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/data/af5075128/9b7b2fe573354694927bb8364daf0b05/FLAGbefb30fda [2022-11-21 13:56:04,289 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/data/af5075128/9b7b2fe573354694927bb8364daf0b05 [2022-11-21 13:56:04,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:56:04,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:56:04,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:56:04,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:56:04,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:56:04,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214eb602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04, skipping insertion in model container [2022-11-21 13:56:04,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:56:04,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:56:04,548 WARN L237 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_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-11-21 13:56:04,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:56:04,578 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:56:04,613 WARN L237 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_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-11-21 13:56:04,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:56:04,630 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:56:04,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04 WrapperNode [2022-11-21 13:56:04,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:56:04,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:56:04,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:56:04,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:56:04,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,710 INFO L138 Inliner]: procedures = 23, calls = 45, calls flagged for inlining = 17, calls inlined = 39, statements flattened = 349 [2022-11-21 13:56:04,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:56:04,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:56:04,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:56:04,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:56:04,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,740 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:56:04,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:56:04,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:56:04,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:56:04,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (1/1) ... [2022-11-21 13:56:04,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:56:04,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:56:04,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:56:04,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:56:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:56:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 13:56:04,857 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 13:56:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 13:56:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 13:56:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-21 13:56:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-21 13:56:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:56:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:56:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:56:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 13:56:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 13:56:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:56:04,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:56:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:56:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:56:04,863 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:56:05,064 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:56:05,066 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:56:05,794 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:56:06,454 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:56:06,454 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:56:06,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:56:06 BoogieIcfgContainer [2022-11-21 13:56:06,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:56:06,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:56:06,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:56:06,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:56:06,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:56:04" (1/3) ... [2022-11-21 13:56:06,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c69f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:56:06, skipping insertion in model container [2022-11-21 13:56:06,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:04" (2/3) ... [2022-11-21 13:56:06,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c69f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:56:06, skipping insertion in model container [2022-11-21 13:56:06,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:56:06" (3/3) ... [2022-11-21 13:56:06,471 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2022-11-21 13:56:06,482 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:56:06,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:56:06,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:56:06,494 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:56:06,603 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-21 13:56:06,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 125 transitions, 274 flow [2022-11-21 13:56:06,755 INFO L130 PetriNetUnfolder]: 1/122 cut-off events. [2022-11-21 13:56:06,755 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 13:56:06,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 122 events. 1/122 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-11-21 13:56:06,760 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 125 transitions, 274 flow [2022-11-21 13:56:06,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 111 transitions, 240 flow [2022-11-21 13:56:06,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:56:06,794 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@17d51e01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:56:06,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-21 13:56:06,845 INFO L130 PetriNetUnfolder]: 1/110 cut-off events. [2022-11-21 13:56:06,845 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 13:56:06,846 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:06,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:06,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-21 13:56:06,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:06,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1217346723, now seen corresponding path program 1 times [2022-11-21 13:56:06,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:06,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508890171] [2022-11-21 13:56:06,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:06,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:14,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:14,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508890171] [2022-11-21 13:56:14,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508890171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:14,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:14,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:56:14,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508317915] [2022-11-21 13:56:14,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:14,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:56:14,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:14,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:56:14,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:56:14,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-21 13:56:14,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 111 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:14,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:14,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-21 13:56:14,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:15,562 INFO L130 PetriNetUnfolder]: 14/201 cut-off events. [2022-11-21 13:56:15,563 INFO L131 PetriNetUnfolder]: For 56/63 co-relation queries the response was YES. [2022-11-21 13:56:15,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 201 events. 14/201 cut-off events. For 56/63 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 428 event pairs, 7 based on Foata normal form. 5/198 useless extension candidates. Maximal degree in co-relation 136. Up to 46 conditions per place. [2022-11-21 13:56:15,568 INFO L137 encePairwiseOnDemand]: 115/125 looper letters, 47 selfloop transitions, 4 changer transitions 10/130 dead transitions. [2022-11-21 13:56:15,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 130 transitions, 424 flow [2022-11-21 13:56:15,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 13:56:15,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 13:56:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 885 transitions. [2022-11-21 13:56:15,594 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.708 [2022-11-21 13:56:15,595 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 885 transitions. [2022-11-21 13:56:15,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 885 transitions. [2022-11-21 13:56:15,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:15,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 885 transitions. [2022-11-21 13:56:15,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.5) internal successors, (885), 10 states have internal predecessors, (885), 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) [2022-11-21 13:56:15,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2022-11-21 13:56:15,622 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2022-11-21 13:56:15,624 INFO L175 Difference]: Start difference. First operand has 120 places, 111 transitions, 240 flow. Second operand 10 states and 885 transitions. [2022-11-21 13:56:15,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 130 transitions, 424 flow [2022-11-21 13:56:15,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 130 transitions, 396 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 13:56:15,633 INFO L231 Difference]: Finished difference. Result has 128 places, 110 transitions, 247 flow [2022-11-21 13:56:15,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=247, PETRI_PLACES=128, PETRI_TRANSITIONS=110} [2022-11-21 13:56:15,639 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 8 predicate places. [2022-11-21 13:56:15,639 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 110 transitions, 247 flow [2022-11-21 13:56:15,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:15,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:15,640 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:15,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:56:15,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-21 13:56:15,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:15,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1868688449, now seen corresponding path program 2 times [2022-11-21 13:56:15,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:15,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414737153] [2022-11-21 13:56:15,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:15,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:20,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:20,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414737153] [2022-11-21 13:56:20,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414737153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:20,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:20,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:56:20,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423755567] [2022-11-21 13:56:20,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:20,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:56:20,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:20,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:56:20,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:56:20,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-21 13:56:20,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 110 transitions, 247 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:20,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:20,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-21 13:56:20,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:21,129 INFO L130 PetriNetUnfolder]: 13/228 cut-off events. [2022-11-21 13:56:21,130 INFO L131 PetriNetUnfolder]: For 58/66 co-relation queries the response was YES. [2022-11-21 13:56:21,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 228 events. 13/228 cut-off events. For 58/66 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 638 event pairs, 5 based on Foata normal form. 2/225 useless extension candidates. Maximal degree in co-relation 355. Up to 35 conditions per place. [2022-11-21 13:56:21,133 INFO L137 encePairwiseOnDemand]: 117/125 looper letters, 47 selfloop transitions, 5 changer transitions 8/129 dead transitions. [2022-11-21 13:56:21,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 129 transitions, 432 flow [2022-11-21 13:56:21,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 13:56:21,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-21 13:56:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 716 transitions. [2022-11-21 13:56:21,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.716 [2022-11-21 13:56:21,137 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 716 transitions. [2022-11-21 13:56:21,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 716 transitions. [2022-11-21 13:56:21,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:21,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 716 transitions. [2022-11-21 13:56:21,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 89.5) internal successors, (716), 8 states have internal predecessors, (716), 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) [2022-11-21 13:56:21,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-21 13:56:21,143 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-21 13:56:21,143 INFO L175 Difference]: Start difference. First operand has 128 places, 110 transitions, 247 flow. Second operand 8 states and 716 transitions. [2022-11-21 13:56:21,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 129 transitions, 432 flow [2022-11-21 13:56:21,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 129 transitions, 409 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-11-21 13:56:21,151 INFO L231 Difference]: Finished difference. Result has 129 places, 111 transitions, 264 flow [2022-11-21 13:56:21,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=264, PETRI_PLACES=129, PETRI_TRANSITIONS=111} [2022-11-21 13:56:21,152 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 9 predicate places. [2022-11-21 13:56:21,153 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 111 transitions, 264 flow [2022-11-21 13:56:21,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:21,154 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:21,154 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:21,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:56:21,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-21 13:56:21,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1749476871, now seen corresponding path program 3 times [2022-11-21 13:56:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:21,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216222440] [2022-11-21 13:56:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:21,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:25,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:25,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:25,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216222440] [2022-11-21 13:56:25,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216222440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:25,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:25,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:56:25,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900210506] [2022-11-21 13:56:25,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:25,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:56:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:25,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:56:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:56:25,670 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-21 13:56:25,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 111 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:25,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:25,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-21 13:56:25,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:26,400 INFO L130 PetriNetUnfolder]: 11/210 cut-off events. [2022-11-21 13:56:26,401 INFO L131 PetriNetUnfolder]: For 93/96 co-relation queries the response was YES. [2022-11-21 13:56:26,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 210 events. 11/210 cut-off events. For 93/96 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 517 event pairs, 3 based on Foata normal form. 1/207 useless extension candidates. Maximal degree in co-relation 353. Up to 41 conditions per place. [2022-11-21 13:56:26,402 INFO L137 encePairwiseOnDemand]: 116/125 looper letters, 46 selfloop transitions, 6 changer transitions 10/131 dead transitions. [2022-11-21 13:56:26,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 131 transitions, 467 flow [2022-11-21 13:56:26,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 13:56:26,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 13:56:26,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 798 transitions. [2022-11-21 13:56:26,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7093333333333334 [2022-11-21 13:56:26,406 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 798 transitions. [2022-11-21 13:56:26,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 798 transitions. [2022-11-21 13:56:26,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:26,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 798 transitions. [2022-11-21 13:56:26,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.66666666666667) internal successors, (798), 9 states have internal predecessors, (798), 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) [2022-11-21 13:56:26,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 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) [2022-11-21 13:56:26,412 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 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) [2022-11-21 13:56:26,412 INFO L175 Difference]: Start difference. First operand has 129 places, 111 transitions, 264 flow. Second operand 9 states and 798 transitions. [2022-11-21 13:56:26,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 131 transitions, 467 flow [2022-11-21 13:56:26,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 131 transitions, 441 flow, removed 9 selfloop flow, removed 5 redundant places. [2022-11-21 13:56:26,417 INFO L231 Difference]: Finished difference. Result has 134 places, 111 transitions, 276 flow [2022-11-21 13:56:26,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=276, PETRI_PLACES=134, PETRI_TRANSITIONS=111} [2022-11-21 13:56:26,418 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 14 predicate places. [2022-11-21 13:56:26,418 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 111 transitions, 276 flow [2022-11-21 13:56:26,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:26,419 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:26,419 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:26,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:56:26,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-21 13:56:26,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:26,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1916399963, now seen corresponding path program 4 times [2022-11-21 13:56:26,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:26,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571986390] [2022-11-21 13:56:26,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:26,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:30,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:30,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571986390] [2022-11-21 13:56:30,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571986390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:30,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:30,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:56:30,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399749167] [2022-11-21 13:56:30,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:30,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:56:30,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:56:30,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:56:30,495 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-21 13:56:30,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 111 transitions, 276 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:30,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:30,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-21 13:56:30,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:31,165 INFO L130 PetriNetUnfolder]: 8/168 cut-off events. [2022-11-21 13:56:31,165 INFO L131 PetriNetUnfolder]: For 113/118 co-relation queries the response was YES. [2022-11-21 13:56:31,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 168 events. 8/168 cut-off events. For 113/118 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 273 event pairs, 3 based on Foata normal form. 2/167 useless extension candidates. Maximal degree in co-relation 297. Up to 35 conditions per place. [2022-11-21 13:56:31,167 INFO L137 encePairwiseOnDemand]: 117/125 looper letters, 37 selfloop transitions, 3 changer transitions 13/122 dead transitions. [2022-11-21 13:56:31,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 122 transitions, 429 flow [2022-11-21 13:56:31,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 13:56:31,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-21 13:56:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 709 transitions. [2022-11-21 13:56:31,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.709 [2022-11-21 13:56:31,170 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 709 transitions. [2022-11-21 13:56:31,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 709 transitions. [2022-11-21 13:56:31,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:31,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 709 transitions. [2022-11-21 13:56:31,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 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) [2022-11-21 13:56:31,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-21 13:56:31,175 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-21 13:56:31,176 INFO L175 Difference]: Start difference. First operand has 134 places, 111 transitions, 276 flow. Second operand 8 states and 709 transitions. [2022-11-21 13:56:31,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 122 transitions, 429 flow [2022-11-21 13:56:31,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 122 transitions, 400 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-11-21 13:56:31,181 INFO L231 Difference]: Finished difference. Result has 134 places, 109 transitions, 255 flow [2022-11-21 13:56:31,181 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=255, PETRI_PLACES=134, PETRI_TRANSITIONS=109} [2022-11-21 13:56:31,182 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 14 predicate places. [2022-11-21 13:56:31,182 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 109 transitions, 255 flow [2022-11-21 13:56:31,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:31,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:31,183 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:31,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:56:31,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-21 13:56:31,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:31,184 INFO L85 PathProgramCache]: Analyzing trace with hash 503976363, now seen corresponding path program 5 times [2022-11-21 13:56:31,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:31,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489243562] [2022-11-21 13:56:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:31,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:36,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:36,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489243562] [2022-11-21 13:56:36,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489243562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:36,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:36,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:56:36,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094794146] [2022-11-21 13:56:36,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:36,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:56:36,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:36,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:56:36,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:56:36,103 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-21 13:56:36,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 109 transitions, 255 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:36,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:36,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-21 13:56:36,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:36,788 INFO L130 PetriNetUnfolder]: 1/135 cut-off events. [2022-11-21 13:56:36,788 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-11-21 13:56:36,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 135 events. 1/135 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 105 event pairs, 0 based on Foata normal form. 1/136 useless extension candidates. Maximal degree in co-relation 216. Up to 30 conditions per place. [2022-11-21 13:56:36,789 INFO L137 encePairwiseOnDemand]: 117/125 looper letters, 37 selfloop transitions, 3 changer transitions 9/118 dead transitions. [2022-11-21 13:56:36,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 118 transitions, 396 flow [2022-11-21 13:56:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 13:56:36,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-21 13:56:36,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 706 transitions. [2022-11-21 13:56:36,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.706 [2022-11-21 13:56:36,792 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 706 transitions. [2022-11-21 13:56:36,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 706 transitions. [2022-11-21 13:56:36,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:36,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 706 transitions. [2022-11-21 13:56:36,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.25) internal successors, (706), 8 states have internal predecessors, (706), 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) [2022-11-21 13:56:36,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-21 13:56:36,797 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-21 13:56:36,797 INFO L175 Difference]: Start difference. First operand has 134 places, 109 transitions, 255 flow. Second operand 8 states and 706 transitions. [2022-11-21 13:56:36,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 118 transitions, 396 flow [2022-11-21 13:56:36,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 118 transitions, 356 flow, removed 10 selfloop flow, removed 11 redundant places. [2022-11-21 13:56:36,801 INFO L231 Difference]: Finished difference. Result has 130 places, 109 transitions, 247 flow [2022-11-21 13:56:36,802 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=247, PETRI_PLACES=130, PETRI_TRANSITIONS=109} [2022-11-21 13:56:36,804 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 10 predicate places. [2022-11-21 13:56:36,805 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 109 transitions, 247 flow [2022-11-21 13:56:36,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:36,805 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:36,805 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:36,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:56:36,806 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-21 13:56:36,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:36,807 INFO L85 PathProgramCache]: Analyzing trace with hash 998421073, now seen corresponding path program 6 times [2022-11-21 13:56:36,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:36,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057347212] [2022-11-21 13:56:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:36,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:42,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:42,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057347212] [2022-11-21 13:56:42,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057347212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:42,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:42,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:56:42,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819732265] [2022-11-21 13:56:42,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:42,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:56:42,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:42,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:56:42,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:56:42,989 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-21 13:56:42,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 109 transitions, 247 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:42,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:42,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-21 13:56:42,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:43,813 INFO L130 PetriNetUnfolder]: 1/113 cut-off events. [2022-11-21 13:56:43,813 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-21 13:56:43,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 113 events. 1/113 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 1 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 175. Up to 32 conditions per place. [2022-11-21 13:56:43,814 INFO L137 encePairwiseOnDemand]: 117/125 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2022-11-21 13:56:43,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 107 transitions, 325 flow [2022-11-21 13:56:43,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 13:56:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-21 13:56:43,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 697 transitions. [2022-11-21 13:56:43,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.697 [2022-11-21 13:56:43,816 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 697 transitions. [2022-11-21 13:56:43,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 697 transitions. [2022-11-21 13:56:43,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:43,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 697 transitions. [2022-11-21 13:56:43,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 87.125) internal successors, (697), 8 states have internal predecessors, (697), 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) [2022-11-21 13:56:43,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-21 13:56:43,822 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-21 13:56:43,822 INFO L175 Difference]: Start difference. First operand has 130 places, 109 transitions, 247 flow. Second operand 8 states and 697 transitions. [2022-11-21 13:56:43,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 107 transitions, 325 flow [2022-11-21 13:56:43,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 107 transitions, 313 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-11-21 13:56:43,824 INFO L231 Difference]: Finished difference. Result has 125 places, 0 transitions, 0 flow [2022-11-21 13:56:43,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=125, PETRI_TRANSITIONS=0} [2022-11-21 13:56:43,825 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2022-11-21 13:56:43,825 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 0 transitions, 0 flow [2022-11-21 13:56:43,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-21 13:56:43,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-21 13:56:43,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-21 13:56:43,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-21 13:56:43,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-21 13:56:43,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:56:43,830 INFO L444 BasicCegarLoop]: Path program histogram: [6] [2022-11-21 13:56:43,833 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:56:43,834 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:56:43,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:56:43 BasicIcfg [2022-11-21 13:56:43,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:56:43,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:56:43,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:56:43,840 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:56:43,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:56:06" (3/4) ... [2022-11-21 13:56:43,843 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:56:43,849 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-21 13:56:43,849 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-21 13:56:43,850 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-21 13:56:43,854 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-21 13:56:43,855 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 13:56:43,855 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 13:56:43,855 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:56:43,893 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:56:43,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:56:43,894 INFO L158 Benchmark]: Toolchain (without parser) took 39600.40ms. Allocated memory was 155.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 111.5MB in the beginning and 1.0GB in the end (delta: -901.1MB). Peak memory consumption was 108.6MB. Max. memory is 16.1GB. [2022-11-21 13:56:43,894 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:56:43,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.61ms. Allocated memory is still 155.2MB. Free memory was 111.5MB in the beginning and 99.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 13:56:43,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.37ms. Allocated memory is still 155.2MB. Free memory was 99.4MB in the beginning and 96.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:56:43,895 INFO L158 Benchmark]: Boogie Preprocessor took 34.85ms. Allocated memory is still 155.2MB. Free memory was 96.7MB in the beginning and 94.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:56:43,895 INFO L158 Benchmark]: RCFGBuilder took 1710.71ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 94.1MB in the beginning and 127.6MB in the end (delta: -33.4MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2022-11-21 13:56:43,896 INFO L158 Benchmark]: TraceAbstraction took 37377.19ms. Allocated memory was 186.6MB in the beginning and 1.2GB in the end (delta: 975.2MB). Free memory was 127.6MB in the beginning and 1.0GB in the end (delta: -888.2MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2022-11-21 13:56:43,896 INFO L158 Benchmark]: Witness Printer took 53.58ms. Allocated memory is still 1.2GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 13:56:43,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.61ms. Allocated memory is still 155.2MB. Free memory was 111.5MB in the beginning and 99.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.37ms. Allocated memory is still 155.2MB. Free memory was 99.4MB in the beginning and 96.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.85ms. Allocated memory is still 155.2MB. Free memory was 96.7MB in the beginning and 94.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1710.71ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 94.1MB in the beginning and 127.6MB in the end (delta: -33.4MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. * TraceAbstraction took 37377.19ms. Allocated memory was 186.6MB in the beginning and 1.2GB in the end (delta: 975.2MB). Free memory was 127.6MB in the beginning and 1.0GB in the end (delta: -888.2MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. * Witness Printer took 53.58ms. Allocated memory is still 1.2GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 140 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 37.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 816 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 630 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 736 IncrementalHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 186 mSDtfsCounter, 736 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=3, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 29.8s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 648 ConstructedInterpolants, 0 QuantifiedInterpolants, 4840 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 13:56:43,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d4577cd-52eb-49c5-ab1d-caa4f1328c86/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE